Παραπομπή APA

Davis, W. S., & Yen, D. C. (1999). The information system consultant's handbook: Systems analysis and design. CRC Press.

Παραπομπή Chicago Style

Davis, William S., και David C. Yen. The Information System Consultant's Handbook: Systems Analysis and Design. Boca Raton, Fla.: CRC Press, 1999.

Παραπομπή MLA

Davis, William S., και David C. Yen. The Information System Consultant's Handbook: Systems Analysis and Design. CRC Press, 1999.