APA aipamena

Crosby, P. B. (2004). Quality without Tears. Orient BlackSwan.

Chicago Style aipamena

Crosby, Philip B. Quality Without Tears. New Delhi: Orient BlackSwan, 2004.

MLA aipamena

Crosby, Philip B. Quality Without Tears. Orient BlackSwan, 2004.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.