Cita APA (7a ed.)

Eckenfelder, W., & O'Connor, D. (1961). Biological waste treatment (3a ed.). Pergamon Press Ltd.

Cita Chicago Style (17a ed.)

Eckenfelder, W.W, y D.J O'Connor. Biological Waste Treatment. 3a ed. Oxford: Pergamon Press Ltd, 1961.

Cita MLA (9a ed.)

Eckenfelder, W.W, y D.J O'Connor. Biological Waste Treatment. 3a ed. Pergamon Press Ltd, 1961.