Howard, J. A. (1965). Marketing theory. Allyn and Bacon.
Chicago-čujuhus (17. p.)Howard, John A. Marketing Theory. Boston: Allyn and Bacon, 1965.
MLA-čujuhus (9. p.)Howard, John A. Marketing Theory. Allyn and Bacon, 1965.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.