Cita APA (7a ed.)

Sage, A. P., & Palmer, J. D. (1990). Software systems engineering. John Wiley & sons.

Cita Chicago Style (17a ed.)

Sage, Andrew P., y James D. Palmer. Software Systems Engineering. New York [etc.]: John Wiley & sons, 1990.

Cita MLA (9a ed.)

Sage, Andrew P., y James D. Palmer. Software Systems Engineering. John Wiley & sons, 1990.