APA (7th ed.) Citation
FAO & FAO. (1986). Drainage design factors: 28 questions and answers. FAO.
Chicago Style (17th ed.) Citation
FAO and FAO. Drainage Design Factors: 28 Questions and Answers. FAO, 1986.
MLA (9th ed.) Citation
FAO and FAO. Drainage Design Factors: 28 Questions and Answers. FAO, 1986.
Warning: These citations may not always be 100% accurate.