«Miscellaneous front pages, Bull. Amer. Math. Soc., Volume 76, Number 2 (1970)». Bulletin of the American Mathematical Society76 (2). 1 de marzo de 1970. ISSN0002-9904. doi:10.1090/s0002-9904-1970-12439-9.
Ossenbach, Carlos (30 de abril de 2014). «Charles H. Lankester (1879-1969): his life and legacy». Lankesteriana13 (3). ISSN2215-2067. doi:10.15517/lank.v13i3.14424.
Rodríguez Caballero, Rafael Lucas (30 de abril de 2014). «Instalación de la primera junta asesora del jardín Charles H. Lankester». Lankesteriana13 (3). ISSN2215-2067. doi:10.15517/lank.v13i3.14348.
«""El Silvestre", which Lankester kept when he sold the rest of his farm in 1955, was inherited by his daughter Dorothy (Fig. 20), but difficult financial circumstances made it seem impossible to fulfill Lankester's dream of conserving the place as an "orchid heaven". Dorothy was forced to put the garden up for sale. However, through the efforts of the Costa Rican Orchid Society and Costa Rican biologist Rafael Lucas Rodríguez, a group of members of the American Orchid Society (led by Rebecca T. Northen), raised half of the purchase price: $25,000. The other half was donated by the Stanley Smith Horticultural Trust of Great Britain." Pzage 370-1». doi:10.17658/issn.2058-5462/issue-07/kgazzard/p48.Falta la |url= (ayuda)
«Miscellaneous back pages, Bull. Amer. Math. Soc., Volume 59, Number 2 (1953)». Bulletin of the American Mathematical Society59 (2). 1 de marzo de 1953. ISSN0002-9904. doi:10.1090/s0002-9904-1953-09712-9.
«Miscellaneous back pages, Bull. Amer. Math. Soc., Volume 59, Number 4 (1953)». Bulletin of the American Mathematical Society59 (4). 1 de julio de 1953. ISSN0002-9904. doi:10.1090/s0002-9904-1953-09748-8.
Biekart, Henry M.; Northen, Henry T.; Northen, Rebecca T. (1954). «The Secret of the Green Thumb.». Bulletin of the Torrey Botanical Club81 (5): 466. ISSN0040-9618. doi:10.2307/2482293.
Northen, Henry T.; Northen, Rebecca (1957). «The Complete Book of Greenhouse Gardening». AIBS Bulletin7 (1): 39. ISSN0096-7645. doi:10.2307/1292052.
Gabella, G. (1980). «Electron microscopy of enzymes Principles and Methods, Vol. 5 Hayat, M. A. (editor) Van Nostrand Reinhold Co. Ltd. - Wokingham 1977». Scanning3 (1): 51. ISSN0161-0457. doi:10.1002/sca.4950030114.
Bunce, John W. (1 de octubre de 1987). «Book Review: Completely bounded maps and dilations». Bulletin of the American Mathematical Society17 (2): 358-360. ISSN0273-0979. doi:10.1090/s0273-0979-1987-15593-5.
«Miscellaneous front pages, Bull. Amer. Math. Soc., Volume 76, Number 2 (1970)». Bulletin of the American Mathematical Society76 (2). 1 de marzo de 1970. ISSN0002-9904. doi:10.1090/s0002-9904-1970-12439-9.
Ossenbach, Carlos (30 de abril de 2014). «Charles H. Lankester (1879-1969): his life and legacy». Lankesteriana13 (3). ISSN2215-2067. doi:10.15517/lank.v13i3.14424.
Rodríguez Caballero, Rafael Lucas (30 de abril de 2014). «Instalación de la primera junta asesora del jardín Charles H. Lankester». Lankesteriana13 (3). ISSN2215-2067. doi:10.15517/lank.v13i3.14348.
«Miscellaneous back pages, Bull. Amer. Math. Soc., Volume 59, Number 2 (1953)». Bulletin of the American Mathematical Society59 (2). 1 de marzo de 1953. ISSN0002-9904. doi:10.1090/s0002-9904-1953-09712-9.
«Miscellaneous back pages, Bull. Amer. Math. Soc., Volume 59, Number 4 (1953)». Bulletin of the American Mathematical Society59 (4). 1 de julio de 1953. ISSN0002-9904. doi:10.1090/s0002-9904-1953-09748-8.
Biekart, Henry M.; Northen, Henry T.; Northen, Rebecca T. (1954). «The Secret of the Green Thumb.». Bulletin of the Torrey Botanical Club81 (5): 466. ISSN0040-9618. doi:10.2307/2482293.
Northen, Henry T.; Northen, Rebecca (1957). «The Complete Book of Greenhouse Gardening». AIBS Bulletin7 (1): 39. ISSN0096-7645. doi:10.2307/1292052.
Gabella, G. (1980). «Electron microscopy of enzymes Principles and Methods, Vol. 5 Hayat, M. A. (editor) Van Nostrand Reinhold Co. Ltd. - Wokingham 1977». Scanning3 (1): 51. ISSN0161-0457. doi:10.1002/sca.4950030114.
Bunce, John W. (1 de octubre de 1987). «Book Review: Completely bounded maps and dilations». Bulletin of the American Mathematical Society17 (2): 358-360. ISSN0273-0979. doi:10.1090/s0273-0979-1987-15593-5.