APA ציטוט

Perkins, W. H. (1938). Cause and prevention of diseases. Lea & Febiger.

Chicago Style (17th ed.) Citation

Perkins, William Harvey. Cause and Prevention of Diseases. Philadelphia: Lea & Febiger, 1938.

ציטוט MLA

Perkins, William Harvey. Cause and Prevention of Diseases. Lea & Febiger, 1938.