Gaya APA

Gehm, H, W., Bregman, J, I. (1976). Handbook of Water Resources and Pollution Control. (1976). : New York : Van Nostrand Reinhold Co.,.

Gaya MLA

Gehm, Harry, W.., Bregman, Jacob, I.. "Handbook of Water Resources and Pollution Control.". 1976 : New York : Van Nostrand Reinhold Co.,, 1976. Text.