Παραπομπή APA

Sage, A. P. (1977). Systems engineering: Methodology and applications. Institute of Electrical and Electronics Engineers.

Παραπομπή Chicago Style

Sage, Andrew P. Systems Engineering: Methodology and Applications. New York: Institute of Electrical and Electronics Engineers, 1977.

Παραπομπή MLA

Sage, Andrew P. Systems Engineering: Methodology and Applications. Institute of Electrical and Electronics Engineers, 1977.