Cita APA (7th ed.)

Cook, E. J. (1994). Anaerobic sludge digestion. Water Pollution Federation.

Cita Chicago (17th ed.)

Cook, Edmund J. Anaerobic Sludge Digestion. Alexandría: Water Pollution Federation, 1994.

Cita MLA (9th ed.)

Cook, Edmund J. Anaerobic Sludge Digestion. Water Pollution Federation, 1994.