NALDC

Trypanosoma americanum : a common blood parasite of American cattle

MLA

Crawley, Howard. Trypanosoma americanum : a common blood parasite of American cattle . U.S. Dept. of Agriculture, Bureau of Animal Industry, 1912.

APA

Crawley, Howard. (1912). Trypanosoma americanum : a common blood parasite of American cattle. U.S. Dept. of Agriculture, Bureau of Animal Industry.

Chicago

Crawley, Howard Trypanosoma americanum : a common blood parasite of American cattle . U.S. Dept. of Agriculture, Bureau of Animal Industry, 1912.