Cravens, D. W. (1991). Strategic marketing (3rd.ed.). Irwin.
Chicago-čujuhus (17. p.)Cravens, David W. Strategic Marketing. 3rd.ed. Homewood, Illinois: Irwin, 1991.
MLA-čujuhus (9. p.)Cravens, David W. Strategic Marketing. 3rd.ed. Irwin, 1991.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.