BOYD HARPER W. (1990). MARKETING RESEARCH TEXT AND CASES (7.). RICHARD D.IRWIN INC.
Chicago-čujuhus (17. p.)BOYD HARPER W. MARKETING RESEARCH TEXT AND CASES. 7. DELHI: RICHARD D.IRWIN INC, 1990.
MLA-čujuhus (9. p.)BOYD HARPER W. MARKETING RESEARCH TEXT AND CASES. 7. RICHARD D.IRWIN INC, 1990.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.