APA (7th ed.) Citation

Kalmbach, E. R. (1940). Economic status of the English sparrow in the United States. U.S. Dept. of Agriculture.

Chicago Style (17th ed.) Citation

Kalmbach, E. R. Economic Status of the English Sparrow in the United States. Washington: U.S. Dept. of Agriculture, 1940.

MLA (9th ed.) Citation

Kalmbach, E. R. Economic Status of the English Sparrow in the United States. U.S. Dept. of Agriculture, 1940.