APA (7th ed.) Citation
Vermillion, D. L. (1989). Second approximations: Unplanned farmer contributions to irrigation design. Overseas Development Institute.
Chicago Style (17th ed.) Citation
Vermillion, Douglas L. Second Approximations: Unplanned Farmer Contributions to Irrigation Design. Overseas Development Institute, 1989.
MLA (9th ed.) Citation
Vermillion, Douglas L. Second Approximations: Unplanned Farmer Contributions to Irrigation Design. Overseas Development Institute, 1989.
Warning: These citations may not always be 100% accurate.