APA-referens (7:e uppl.)

RAY MICHAEL. (1986). CREATIVITY IN BUSINESS. DOUBLEDAY.

Chicago-referens (17:e uppl.)

RAY MICHAEL. CREATIVITY IN BUSINESS. NEW YORK: DOUBLEDAY, 1986.

MLA-referens (9:e uppl.)

RAY MICHAEL. CREATIVITY IN BUSINESS. DOUBLEDAY, 1986.