Gaya APA

Swanson, C, P., M.S., I, H. (1984). Diseases of poultry . Iowa: Iowa: Iowa University Press; 1984.

Gaya MLA

Swanson, Carl, P.., M.S., I., Houfstad,. "Diseases of poultry". Iowa: Iowa: Iowa University Press; 1984, 1984. Text.