Cita APA (7th ed.)

Hetzel, W., & Adams, D. R. (1985). Computer information systems development: Principles and case study. South-Western.

Cita Chicago (17th ed.)

Hetzel, William, i David R. Adams. Computer Information Systems Development: Principles and Case Study. Cincinnati: South-Western, 1985.

Cita MLA (9th ed.)

Hetzel, William, i David R. Adams. Computer Information Systems Development: Principles and Case Study. South-Western, 1985.