Hydroponics
MLA
Kopolow, Carol. Hydroponics. Beltsville, Md.: National Agricultural Library, 1991
APA, 7th edition
Kopolow, C. (1991). Hydroponics. Beltsville, Md.: National Agricultural Library
Chicago, 17th edition
Kopolow, Carol. Hydroponics. Beltsville, Md.: National Agricultural Library, 1991