D'Azzo, J. J., & Houpis, C. H. Feedback control system analysis and synthesis: John J. D'Azzo, Constantine H. Houpis (2nd Edition.). New York : McGraw-Hill.
Chicago-viite (17. p.)D'Azzo, John J., ja Constantine H. Houpis. Feedback Control System Analysis and Synthesis: John J. D'Azzo, Constantine H. Houpis. 2nd Edition. McGraw-Hill electrical and electronic engineering series: New York : McGraw-Hill.
MLA-viite (9. p.)D'Azzo, John J., ja Constantine H. Houpis. Feedback Control System Analysis and Synthesis: John J. D'Azzo, Constantine H. Houpis. 2nd Edition. New York : McGraw-Hill.
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