Παραπομπή APA

Eldon D Enger. (2003). Concepts in Biology. Tata McGrawhill.

Παραπομπή Chicago Style

Eldon D Enger. Concepts in Biology. New Delhi: Tata McGrawhill, 2003.

Παραπομπή MLA

Eldon D Enger. Concepts in Biology. Tata McGrawhill, 2003.