Dyfyniad APA
Datt, R., & K.P.M. Sundharam. (2003). Services marketing (48th ed.). S. Chand.
Dyfyniad Arddull Chicago
Datt, Ruddar, and K.P.M. Sundharam. Services Marketing. 48th ed. New Delhi: S. Chand, 2003.
Dyfyniad MLA
Datt, Ruddar, and K.P.M. Sundharam. Services Marketing. 48th ed. S. Chand, 2003.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.