APA (7th ed.) Zitazioa

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

Chicago Style (17th ed.) Zitazioa

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

MLA (9th ed.) Zitazioa

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