Cravens, D. W. (1987). Strategic marketing (2nd ed.). Irwin.
Chicago-čujuhus (17. p.)Cravens, David W. Strategic Marketing. 2nd ed. Homewood, Ill.: Irwin, 1987.
MLA-čujuhus (9. p.)Cravens, David W. Strategic Marketing. 2nd ed. Irwin, 1987.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.