Fauna of the national parks of the United States : a preliminary survey of faunal relations in national parks - Wright, George M. (George Melendez),; Dixon, Joseph S. (Joseph Scattergood),; Thompson, Ben H. (Benjamin Hunter), (Washington, U.S. G.P.O, 1933)
https://www.biodiversitylibrary.org/bibliography/70853
Keywords: National parks and reserves|United States|Vertebrates|Zoology