Cita APA (7a ed.)

Baumann, P. G. (1991). Anaerobic sludge digestion (2a ed.). Water Pollution Control Federation.

Cita Chicago Style (17a ed.)

Baumann, Peter G. Anaerobic Sludge Digestion. 2a ed. United States: Water Pollution Control Federation, 1991.

Cita MLA (9a ed.)

Baumann, Peter G. Anaerobic Sludge Digestion. 2a ed. Water Pollution Control Federation, 1991.