APA (7th ed.) Citation

Christy, L. C. (1972). Legislative principles of soil conservation. Food and Agriculture Organization of the United Nations.

Chicago Style (17th ed.) Citation

Christy, Lawrence C. Legislative Principles of Soil Conservation. Rome: Food and Agriculture Organization of the United Nations, 1972.

MLA (9th ed.) Citation

Christy, Lawrence C. Legislative Principles of Soil Conservation. Food and Agriculture Organization of the United Nations, 1972.