Wirtz,Jochen & others. (2018). Services Marketing (8.). Pearson.
Cita Chicago (17th ed.)Wirtz,Jochen & others. Services Marketing. 8. Nodia: Pearson, 2018.
Cita MLA (9th ed.)Wirtz,Jochen & others. Services Marketing. 8. Pearson, 2018.
Atenció: Aquestes cites poden no estar 100% correctes.