APA (7th ed.) Citation

Schiller, E. J., & Droste, R. L. (1982). Water supply and sanitation in developing countries. Ann Arbor Science.

Chicago Style (17th ed.) Citation

Schiller, Eric J., and Ronald L. Droste. Water Supply and Sanitation in Developing Countries. Ann Arbor, Mich. Sevenoaks: Ann Arbor Science, 1982.

MLA (9th ed.) Citation

Schiller, Eric J., and Ronald L. Droste. Water Supply and Sanitation in Developing Countries. Ann Arbor Science, 1982.