YOUNG J R. (1978). PERSONAL: SELLING, FUNCTION, THEORY PRACTICE. DRYDEN PRESS.
Chicago-čujuhus (17. p.)YOUNG J R. PERSONAL: SELLING, FUNCTION, THEORY PRACTICE. U S A: DRYDEN PRESS, 1978.
MLA-čujuhus (9. p.)YOUNG J R. PERSONAL: SELLING, FUNCTION, THEORY PRACTICE. DRYDEN PRESS, 1978.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.