Cita APA (7a ed.)

Eckenfelder, W., Malina, J., & Patterson, J. (1992). Water quality management library. Vol: 4 municipal sewage sludge. Technomic.

Cita Chicago Style (17a ed.)

Eckenfelder, W.W, J.F Malina, y J. Patterson. Water Quality Management Library. Vol: 4 Municipal Sewage Sludge. Lancaster: Technomic, 1992.

Cita MLA (9a ed.)

Eckenfelder, W.W, et al. Water Quality Management Library. Vol: 4 Municipal Sewage Sludge. Technomic, 1992.