APA-referens (7:e uppl.)

PORTER MICHAEL E. (1983). CASES IN COMPETITIVE STRATEGY. FREE PRESS.

Chicago-referens (17:e uppl.)

PORTER MICHAEL E. CASES IN COMPETITIVE STRATEGY. NEW YORK LONDON: FREE PRESS, 1983.

MLA-referens (9:e uppl.)

PORTER MICHAEL E. CASES IN COMPETITIVE STRATEGY. FREE PRESS, 1983.