APA
Cravens D. W., . (1983). The sales manager's book of marketing planning. Homewood, Ill: Dow Jones-Irwin.
Chicago
Cravens David W, . 1983. The sales manager's book of marketing planning. Homewood, Ill: Dow Jones-Irwin.
Harvard
Cravens D. W., . (1983). The sales manager's book of marketing planning. Homewood, Ill: Dow Jones-Irwin.
MLA
Cravens David W, . The sales manager's book of marketing planning. Homewood, Ill: Dow Jones-Irwin. 1983.