APA استشهاد

Sturdy, A. (2001). Customer service: Empowerment and entrapment. Palgrave.

استشهاد بنمط شيكاغو

Sturdy, Andrew. Customer Service: Empowerment and Entrapment. New York: Palgrave, 2001.

MLA استشهاد

Sturdy, Andrew. Customer Service: Empowerment and Entrapment. Palgrave, 2001.