Zeithaml, V. A. B. (2013). Services Marketing (6th.). McGraw Hill.
Chicago-čujuhus (17. p.)Zeithaml, Valarie A; Bitner. Services Marketing. 6th. New Delhi: McGraw Hill, 2013.
MLA-čujuhus (9. p.)Zeithaml, Valarie A; Bitner. Services Marketing. 6th. McGraw Hill, 2013.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.