Παραπομπή σε μορφή APA (7η εκδ.)

United States. Department of Agriculture & Hayes, J. (1981). Will there be enough food? The Department.

Παραπομπή σε μορφή Chicago (17η εκδ.)

United States. Department of Agriculture και Jack Hayes. Will There Be Enough Food? [Washington]: The Department, 1981.

Παραπομπή σε μορφή MLA (9th εκδ.)

United States. Department of Agriculture και Jack Hayes. Will There Be Enough Food? The Department, 1981.