Jochen Wirtz. (2019). Service Marketing (8th ed.). pearson.
Chicago-čujuhus (17. p.)Jochen Wirtz. Service Marketing. 8th ed. Delhi: pearson, 2019.
MLA-čujuhus (9. p.)Jochen Wirtz. Service Marketing. 8th ed. pearson, 2019.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.