APA (7e ed.) Bronvermelding

United States. Dept. of Agriculture. Economic Research Service, United States. Dept. of Agriculture. Economics and Statistics Service, & United States. World Food and Agricultural Outlook and Situation Board. (1981). Wheat outlook & situation. The Service.

Chicago (17e ed.) Bronvermelding

United States. Dept. of Agriculture. Economic Research Service, United States. Dept. of Agriculture. Economics and Statistics Service, en United States. World Food and Agricultural Outlook and Situation Board. Wheat Outlook & Situation. [Washington, D.C.]: The Service, 1981.

MLA (8e ed.) Bronvermelding

United States. Dept. of Agriculture. Economic Research Service, et al. Wheat Outlook & Situation. The Service, 1981.