APA aipamena

Calvin, R. J. (2001). Sales management. New York: McGraw-Hill.

Chicago Style aipamena

Calvin, Robert J. Sales Management. New York: McGraw-Hill, 2001.

MLA aipamena

Calvin, Robert J. Sales Management. New York: McGraw-Hill, 2001.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.