GUPTA, S. (2002). ELEMENTS OF CONTROL SYSTEMS. PHI.
Cita Chicago Style (17a ed.)GUPTA, SUDHIR. ELEMENTS OF CONTROL SYSTEMS. NEW DELHI: PHI, 2002.
Cita MLA (9a ed.)GUPTA, SUDHIR. ELEMENTS OF CONTROL SYSTEMS. PHI, 2002.
Precaución: Estas citas no son 100% exactas.