APA-ийн эшлэл(7 дахь хэвлэлт)

Zeithaml,Valarie A, & Bitner, M. J. G. (2019). Services Marketing (7th.). McGraw Hill Education.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Zeithaml,Valarie A, ба Mary Jo; Gremler Bitner. Services Marketing. 7th. Chennai: McGraw Hill Education, 2019.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Zeithaml,Valarie A, ба Mary Jo; Gremler Bitner. Services Marketing. 7th. McGraw Hill Education, 2019.