APA (7e ed.) Bronvermelding

RUSSELL, T., & VERRILL, G. (1986). Otto kleppner's advertising procedure.-- Ed.9. Prentice-Hall.

Chicago (17e ed.) Bronvermelding

RUSSELL, Thomas, en Glenn VERRILL. Otto Kleppner's Advertising Procedure.-- Ed.9. New Jersey: Prentice-Hall, 1986.

MLA (9e ed.) Bronvermelding

RUSSELL, Thomas, en Glenn VERRILL. Otto Kleppner's Advertising Procedure.-- Ed.9. Prentice-Hall, 1986.