Cita APA (7th ed.)

Shelly, G. B., & Rosenblatt, H. J. (2012). Systems analysis and design (9th ed.). Course Technology Cengage Learning.

Cita Chicago (17th ed.)

Shelly, Gary B., i Harry J. Rosenblatt. Systems Analysis and Design. 9th ed. Boston: Course Technology Cengage Learning, 2012.

Cita MLA (9th ed.)

Shelly, Gary B., i Harry J. Rosenblatt. Systems Analysis and Design. 9th ed. Course Technology Cengage Learning, 2012.