APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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

Let op: Deze citaties zijn niet altijd 100% accuraat.