thomsen, f. l. (1951). Agricultural marketing. mcgraw hill book company, inc.
Chicago-čujuhus (17. p.)thomsen, frederick lundy. Agricultural Marketing. new york , london: mcgraw hill book company, inc, 1951.
MLA-čujuhus (9. p.)thomsen, frederick lundy. Agricultural Marketing. mcgraw hill book company, inc, 1951.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.