APA-referens (7:e uppl.)

RINGLAND GILL. (2002). SCENARIOS IN BUSINESS. JOHN WILEY AND SONS.

Chicago-referens (17:e uppl.)

RINGLAND GILL. SCENARIOS IN BUSINESS. U K: JOHN WILEY AND SONS, 2002.

MLA-referens (9:e uppl.)

RINGLAND GILL. SCENARIOS IN BUSINESS. JOHN WILEY AND SONS, 2002.