Circular on gophers
By: Norman J. Colman, Commissioner of Agriculture
Contributors: United States. Division of Ornithology and Mammalogy
Edition: Second edition
Series: Circular / Division of Ornithology and Mammalogy -- no. 9, Second Edition; Circular (United States. Division of Ornithology and Mammalogy) -- no. 9, Second Edition.
Published: 1889
Language: eng
Subjects: Ground squirrels; Pocket gophers
Notes: "January 15, 1889."