APA-ийн эшлэл(7 дахь хэвлэлт)

Schonberger, R. J. (1991). Operations management: Improving customer service (4th.). Irwin.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Schonberger, Richard J. Operations Management: Improving Customer Service. 4th. Homewood: Irwin, 1991.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Schonberger, Richard J. Operations Management: Improving Customer Service. 4th. Irwin, 1991.