APA (7th ed.) Citation

Williams, M. S., & Couston, J. W. (1962). Crop production levels and fertilizer use. Food and Agriculture Organization of the United Nations.

Chicago Style (17th ed.) Citation

Williams, Moyle Strayhorn, and John W. Couston. Crop Production Levels and Fertilizer Use. Rome: Food and Agriculture Organization of the United Nations, 1962.

MLA (9th ed.) Citation

Williams, Moyle Strayhorn, and John W. Couston. Crop Production Levels and Fertilizer Use. Food and Agriculture Organization of the United Nations, 1962.