Cita APA (7th ed.)

Shelly, G. B., & Cashman, T. J. (1991). Systems analysis and design. Boyd & Fraser.

Cita Chicago (17th ed.)

Shelly, Gary B., i Thomas J. Cashman. Systems Analysis and Design. Boston: Boyd & Fraser, 1991.

Cita MLA (9th ed.)

Shelly, Gary B., i Thomas J. Cashman. Systems Analysis and Design. Boyd & Fraser, 1991.