Sage, A. P., Armstrong, J. E., & Armstrong, J. (2000). Introduction to systems engineering. New York: Wiley.
Παραπομπή Chicago StyleSage, Andrew P., James E. Armstrong, and James Armstrong. Introduction to Systems Engineering. New York: Wiley, 2000.
Παραπομπή MLASage, Andrew P., James E. Armstrong, and James Armstrong. Introduction to Systems Engineering. New York: Wiley, 2000.
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