Παραπομπή APA

Culp, C. L., & Clup, R. L. (1974). New concepts in water purification. Van Nostrand Reinhold Company.

Παραπομπή Chicago Style

Culp, Cordon L., και Russel L. Clup. New Concepts in Water Purification. New York: Van Nostrand Reinhold Company, 1974.

Παραπομπή MLA

Culp, Cordon L., και Russel L. Clup. New Concepts in Water Purification. Van Nostrand Reinhold Company, 1974.