GUPTA, S. (2002). ELEMENTS OF CONTROL SYSTEMS. PHI.
Chicago-čujuhus (17. p.)GUPTA, SUDHIR. ELEMENTS OF CONTROL SYSTEMS. NEW DELHI: PHI, 2002.
MLA-čujuhus (9. p.)GUPTA, SUDHIR. ELEMENTS OF CONTROL SYSTEMS. PHI, 2002.
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