Παραπομπή APA

Zethanil. (2013). Services marketing People,Technology strategy (07 Edition.).

Παραπομπή Chicago Style

Zethanil. Services Marketing People,Technology Strategy. 07 Edition. Macgraw -Hill Co of Canada Ltd., London, 2013.

Παραπομπή MLA

Zethanil. Services Marketing People,Technology Strategy. 07 Edition. 2013.