APA
Whitten J. B. L. D., . (2014). System analysis and design methods.-7thed. New Delhi: McGraw Hill Education.
Chicago
Whitten Jeffrey Bentley Lonnie D, . 2014. System analysis and design methods.-7thed. New Delhi: McGraw Hill Education.
Harvard
Whitten J. B. L. D., . (2014). System analysis and design methods.-7thed. New Delhi: McGraw Hill Education.
MLA
Whitten Jeffrey Bentley Lonnie D, . System analysis and design methods.-7thed. New Delhi: McGraw Hill Education. 2014.