Παραπομπή APA

Fange, E. K. V. (1959). Professional creativity. Prentice hall.

Παραπομπή Chicago Style

Fange, Eugene K. Van. Professional Creativity. New Jersey: Prentice hall, 1959.

Παραπομπή MLA

Fange, Eugene K. Van. Professional Creativity. Prentice hall, 1959.