Forster, D. L. (1981). Foundations for managing the farm business. Grid.
Chicago-čujuhus (17. p.)Forster, D. Lynn. Foundations for Managing the Farm Business. Grid, 1981.
MLA-čujuhus (9. p.)Forster, D. Lynn. Foundations for Managing the Farm Business. Grid, 1981.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.