APA

Eddy S., Hodson A. C., . (1961). Taxonomic keys to the common animals of the North Central States, exclusive of the parasitic worms, insects, and birds. Minneapolis: Burgess Pub. Co.

Chicago

Eddy Samuel, Hodson A C, . 1961. Taxonomic keys to the common animals of the North Central States, exclusive of the parasitic worms, insects, and birds. Minneapolis: Burgess Pub. Co.

Harvard

Eddy S., Hodson A. C., . (1961). Taxonomic keys to the common animals of the North Central States, exclusive of the parasitic worms, insects, and birds. Minneapolis: Burgess Pub. Co.

MLA

Eddy Samuel, Hodson A C, . Taxonomic keys to the common animals of the North Central States, exclusive of the parasitic worms, insects, and birds. Minneapolis: Burgess Pub. Co. 1961.