APA aipamena

Johnston, M. W., & Marshall, G. W. (2008). Relationship selling. Boston: McGraw-Hill/Irwin.

Chicago Style aipamena

Johnston, Mark W., and Greg W. Marshall. Relationship Selling. Boston: McGraw-Hill/Irwin, 2008.

MLA aipamena

Johnston, Mark W., and Greg W. Marshall. Relationship Selling. Boston: McGraw-Hill/Irwin, 2008.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.