APA-referens (7:e uppl.)

FERELL O C. (1993). MARKETING CONCEPTS AND STRATERGIES (8TH.). HOUGHTON & MIFFLIN.

Chicago-referens (17:e uppl.)

FERELL O C. MARKETING CONCEPTS AND STRATERGIES. 8TH. BOSTON: HOUGHTON & MIFFLIN, 1993.

MLA-referens (9:e uppl.)

FERELL O C. MARKETING CONCEPTS AND STRATERGIES. 8TH. HOUGHTON & MIFFLIN, 1993.