Kotler, P. (1980). Principles of marketing. Prentice-Hall.
Chicago-čujuhus (17. p.)Kotler, Philip. Principles of Marketing. Englewood Cliffs: Prentice-Hall, 1980.
MLA-čujuhus (9. p.)Kotler, Philip. Principles of Marketing. Prentice-Hall, 1980.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.