Whitten, J. L., & Bentley, L. D. (1989). Systems analysis and design methods: Systems analysis and design methods (0-8016-5464-5.). Irwin.
Citazione stile Chigago Style (17a edizione)Whitten, Jeffrey L., e Lonnie D. Bentley. Systems Analysis and Design Methods: Systems Analysis and Design Methods. 0-8016-5464-5. Homewood, IL: Irwin, 1989.
Citatione MLA (9a ed.)Whitten, Jeffrey L., e Lonnie D. Bentley. Systems Analysis and Design Methods: Systems Analysis and Design Methods. 0-8016-5464-5. Irwin, 1989.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.