APA (7th ed.) Citation

Food and Agriculture Organization of the United Nations. Land and Water Development Division. (1977). Guidelines for soil profile description (2nd ed.). Food and Agriculture Organization of the United Nations.

Chicago Style (17th ed.) Citation

Food and Agriculture Organization of the United Nations. Land and Water Development Division. Guidelines for Soil Profile Description. 2nd ed. Rome: Food and Agriculture Organization of the United Nations, 1977.

MLA (9th ed.) Citation

Food and Agriculture Organization of the United Nations. Land and Water Development Division. Guidelines for Soil Profile Description. 2nd ed. Food and Agriculture Organization of the United Nations, 1977.