Harris, J. Berton C.; Reid, J. Leighton; Scheffers, Brett R.; Wanger, Thomas C.; Sodhi, Navjot S.; Fordham, Damien A.; Brook, Barry W. (2012). “Conserving imperiled species: a comparison of the IUCN Red List and U.S. Endangered Species Act”. Conservation Letters5 (1): 64–72. doi:10.1111/j.1755-263X.2011.00205.x. ISSN1755-263X.
Harris, J. Berton C.; Reid, J. Leighton; Scheffers, Brett R.; Wanger, Thomas C.; Sodhi, Navjot S.; Fordham, Damien A.; Brook, Barry W. (2012). “Conserving imperiled species: a comparison of the IUCN Red List and U.S. Endangered Species Act”. Conservation Letters5 (1): 64–72. doi:10.1111/j.1755-263X.2011.00205.x. ISSN1755-263X.