Gaya APA
Cravens, D, W.
(1994).
Strategic marketing
(
ed.4)
.
United States Of America:
RICHARD D. IRWIN. INC.
Gaya MLA
Cravens, David, W..
"Strategic marketing".
ed.4
United States Of America:
RICHARD D. IRWIN. INC,
1994.
Teks.