Assael, H. (1990). Marketing: Principles & strategy (2nd ed.). Harcourt brace.
Chicago-čujuhus (17. p.)Assael, Henry. Marketing: Principles & Strategy. 2nd ed. Philadelphia: Harcourt brace, 1990.
MLA-čujuhus (9. p.)Assael, Henry. Marketing: Principles & Strategy. 2nd ed. Harcourt brace, 1990.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.