APA (7th ed.) Citation

Harris, R. L. (1991). The customer is king! ASQC Quality Press.

Chicago Style (17th ed.) Citation

Harris, R. L. The Customer Is King! Milwaukee, Wis: ASQC Quality Press, 1991.

MLA (9th ed.) Citation

Harris, R. L. The Customer Is King! ASQC Quality Press, 1991.