APA
Fair G. M., Geyer J. C. & Okun D. A. (1968). Water and wastewater engineering : water purification and wasterwater treatment and disposal. New York: John Wiley & Sons.
Chicago
Fair Gordon Maskew, Geyer John Charles and Okun Daniel Alexander. 1968. Water and wastewater engineering : water purification and wasterwater treatment and disposal. New York: John Wiley & Sons.
Harvard
Fair G. M., Geyer J. C. and Okun D. A. (1968). Water and wastewater engineering : water purification and wasterwater treatment and disposal. New York: John Wiley & Sons.
MLA
Fair Gordon Maskew, Geyer John Charles and Okun Daniel Alexander. Water and wastewater engineering : water purification and wasterwater treatment and disposal. New York: John Wiley & Sons. 1968.