Cita APA (7th ed.)

Reed, S. C., Middlebrooks, E. J., & Crites, R. W. (1988). Natural systems for waste management and treatment. McGraw-Hill.

Cita Chicago (17th ed.)

Reed, Sherwood C., E. Joe Middlebrooks, i Ronald W. Crites. Natural Systems for Waste Management and Treatment. New York: McGraw-Hill, 1988.

Cita MLA (9th ed.)

Reed, Sherwood C., et al. Natural Systems for Waste Management and Treatment. McGraw-Hill, 1988.