APA (7th ed.) Citation

Bell, Morrey, & Pugh. (1997). The essence of program design. Prentice Hall.

Chicago Style (17th ed.) Citation

Bell, Morrey, and Pugh. The Essence of Program Design. London: Prentice Hall, 1997.

MLA (8th ed.) Citation

Bell, et al. The Essence of Program Design. Prentice Hall, 1997.

Warning: These citations may not always be 100% accurate.