Cita APA (7th ed.)

Culp, G. L., & Culp, R. L. (1974). New concepts in water purification. Van Nostrand Reinhold Co.

Cita Chicago (17th ed.)

Culp, Gordon L., i Russell L. Culp. New Concepts in Water Purification. New York: Van Nostrand Reinhold Co, 1974.

Cita MLA (9th ed.)

Culp, Gordon L., i Russell L. Culp. New Concepts in Water Purification. Van Nostrand Reinhold Co, 1974.