Sage, A. P. (1977). Systems engineering: Methodology and applications. Institute of Electrical and Electronics Engineers.
Chicago-стиль цитированияSage, Andrew P. Systems Engineering: Methodology and Applications. New York: Institute of Electrical and Electronics Engineers, 1977.
MLA-цитированиеSage, Andrew P. Systems Engineering: Methodology and Applications. Institute of Electrical and Electronics Engineers, 1977.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.