Northern sheep frog (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Northern sheep frog" in English language version.

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9,111^th place

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amnh.org

Frost, Darrel R. 2021. "Hypopachus variolosus (Cope, 1866)". Amphibian Species of the World 6.1, an Online Reference. American Museum of Natural History. (Retrieved December 4, 2021).

"Hypopachus variolosus". AmphibiaWeb: Information on amphibian biology and conservation. [web application]. Berkeley, California: AmphibiaWeb. 2014. Retrieved March 28, 2014.
AmphibiaWeb, Hypopachus variolosus, Sheep Frog: Map of Life (accessed December 6, 2021)

IUCN SSC Amphibian Specialist Group (2020). "Hypopachus variolosus". IUCN Red List of Threatened Species. 2020: e.T57832A53969609. doi:10.2305/IUCN.UK.2020-1.RLTS.T57832A53969609.en. Retrieved November 12, 2021.

IUCN SSC Amphibian Specialist Group (2020). "Hypopachus variolosus". IUCN Red List of Threatened Species. 2020: e.T57832A53969609. doi:10.2305/IUCN.UK.2020-1.RLTS.T57832A53969609.en. Retrieved November 12, 2021.

Crother, B. I. (ed.). 2017. "Scientific and Standard English Names of Amphibians and Reptiles of North America North of Mexico, with Comments Regarding Confidence in Our Understanding". SSAR Herpetological Circular 43, 1–102 pp. [see page 86] ISBN 978-1-946681-00-3

Texas Parks and Wildlife: TPWD Wildlife Diversity TXNDD Tracked Animals (accessed December 4, 2021)