APA استشهاد

Johnson, E. M. (1994). Sales management: Concepts, practices and cases (2 edition.).

استشهاد بنمط شيكاغو

Johnson, Eugene M. Sales Management: Concepts, Practices and Cases. 2 edition. Mc Graw Hill: New York, 1994.

MLA استشهاد

Johnson, Eugene M. Sales Management: Concepts, Practices and Cases. 2 edition. 1994.