APA-čujuhus (7. p.)
Datt, R., & K.P.M. Sundharam. (2003). Services marketing (48th ed.). S. Chand.
Chicago-čujuhus (17. p.)
Datt, Ruddar, juo K.P.M. Sundharam. Services Marketing. 48th ed. New Delhi: S. Chand, 2003.
MLA-čujuhus (9. p.)
Datt, Ruddar, juo K.P.M. Sundharam. Services Marketing. 48th ed. S. Chand, 2003.
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