APA

Eddy S., Hodson A., . (1961). Taxonomic Keys to the Common Animals of the North Central States: Exclusive of the Parasitic Worms, Insects and Birds. Minneapolis MN: Burgess Publishing Company.

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 MN: Burgess Publishing Company.

Harvard

Eddy S., Hodson A., . (1961). Taxonomic Keys to the Common Animals of the North Central States: Exclusive of the Parasitic Worms, Insects and Birds. Minneapolis MN: Burgess Publishing Company.

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 MN: Burgess Publishing Company. 1961.