APA استشهاد

Haas, R. W. (1989). Business marketing management: An organizational approach (5th ed.). PWS - KENI.

استشهاد بنمط شيكاغو

Haas, Robert W. Business Marketing Management: An Organizational Approach. 5th ed. Boston: PWS - KENI, 1989.

MLA استشهاد

Haas, Robert W. Business Marketing Management: An Organizational Approach. 5th ed. PWS - KENI, 1989.