APA (7th ed.) Citation

Petrak, M. L. (1982). Diseases of cage and aviary birds (2. ed.). Lea & Febiger.

Chicago Style (17th ed.) Citation

Petrak, Margaret L. Diseases of Cage and Aviary Birds. 2. ed. Philadelphia: Lea & Febiger, 1982.

MLA (9th ed.) Citation

Petrak, Margaret L. Diseases of Cage and Aviary Birds. 2. ed. Lea & Febiger, 1982.