Richard G. Zweifel (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Richard G. Zweifel" in English language version.

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amnh.org

research.amnh.org

"About the Department". American Museum of Natural History, Division of Vertebrate Zoology, Department of Herpetology. Retrieved 2011-01-13.

asih.org

"Board of Governors Meeting" (PDF). American Society of Ichthyologists and Herpetologists. 12 August 2020. Retrieved 26 January 2021.

books.google.com

Beolens, Bo; Watkins, Michael & Grayson, Michael (2013). The Eponym Dictionary of Amphibians. Pelagic Publishing. p. 241. ISBN 978-1-907807-42-8.

cnah.org

Hillis, David M.; Frost, John S.; Webb, Robert G. (1984-05-01). "A new species of frog of the Rana tarahumarae group from southwestern Mexico" (PDF). Copeia. 1984 (2): 398–403. doi:10.2307/1445197. Archived from the original (PDF) on 2011-07-26. Retrieved 2011-01-13.

doi.org

Hillis, David M.; Frost, John S.; Webb, Robert G. (1984-05-01). "A new species of frog of the Rana tarahumarae group from southwestern Mexico" (PDF). Copeia. 1984 (2): 398–403. doi:10.2307/1445197. Archived from the original (PDF) on 2011-07-26. Retrieved 2011-01-13.

nytimes.com

Stock, Robert W. (1969). "At 100, the Museum Of Natural History Is No Fossil; Behind the scenes, a great institution is striving to make its second century even better". The New York Times, June 29, 1969. Accessed November 22, 2017. "Dr. Zweifel's specialty is frogs, and he pursues them in the swamps of New Jersey (he lives in Northvale, N. J.) and the jungles of New Guinea."

portalrodeo.com

"Herpetological Review". 2020. Retrieved 29 April 2021.

web.archive.org

Hillis, David M.; Frost, John S.; Webb, Robert G. (1984-05-01). "A new species of frog of the Rana tarahumarae group from southwestern Mexico" (PDF). Copeia. 1984 (2): 398–403. doi:10.2307/1445197. Archived from the original (PDF) on 2011-07-26. Retrieved 2011-01-13.