1955
|
Logier, E. B. Shelle and G. C. Toner. Checklist of the amphibians and reptiles of Canada and Alaska. Contributions of the Royal Ontario Museum of Zoology 41():1-88
|
1956
|
Ferguson, Denzel E. The distribution of Rana sylvatica cantabrigensis Baird in western Canada and Alaska. Herpetologica 12():132
|
1961
|
Logier, E. B. Shelle and G. C. Toner. Check list of the amphibians and reptiles of Canada and Alaska. A revision of Contribution no. 41. Contribution no. 53 Life Sciences Division. Royal Ontario Museum, Toronto, Canada. 92pp.
|
1976
|
Hodge, R. P. Amphibians and reptiles in Alaska, the Yukon and Northwest Territories. Alaska Northwest Publishing Company, Anchorage, Alaska. 89pp.
|
2002
|
St. John, Alan. Reptiles of the Northwest: California to Alaska, Rockies to the Coast. Lone Pine Publishing., Renton, Washington. pp.
|