Culp, C. L., & Clup, R. L. (1974). New concepts in water purification. Van Nostrand Reinhold Company.
Dyfyniad Arddull ChicagoCulp, Cordon L., and Russel L. Clup. New Concepts in Water Purification. New York: Van Nostrand Reinhold Company, 1974.
Dyfyniad MLACulp, Cordon L., and Russel L. Clup. New Concepts in Water Purification. Van Nostrand Reinhold Company, 1974.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.