Cita APA (7th ed.)

Warren, C. E. (1971). Biology and water pollution control. W. B Saunders.

Cita Chicago (17th ed.)

Warren, Charles E. Biology and Water Pollution Control. Filadelfia: W. B Saunders, 1971.

Cita MLA (9th ed.)

Warren, Charles E. Biology and Water Pollution Control. W. B Saunders, 1971.