United States. Department of Agriculture & Hayes, J. (1981). Will there be enough food? The Department.
Chicago-čujuhus (17. p.)United States. Department of Agriculture juo Jack Hayes. Will There Be Enough Food? [Washington]: The Department, 1981.
MLA-čujuhus (9. p.)United States. Department of Agriculture juo Jack Hayes. Will There Be Enough Food? The Department, 1981.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.