APA-viite

Holtje, H. F. (1981). Schaum's outline of theory and problems of marketing. Mc graw hill book company.

Chicago-tyylinen lähdeviittaus

Holtje, Herbert F. Schaum's Outline of Theory and Problems of Marketing. New York: Mc graw hill book company, 1981.

MLA-viite

Holtje, Herbert F. Schaum's Outline of Theory and Problems of Marketing. Mc graw hill book company, 1981.