SUKLA, R. C. (1992). CONTROL SYSTEMS. DHANPAT RAI.
Lua i Stíl Chicago (17ú heag.)SUKLA, R C. CONTROL SYSTEMS. DELHI: DHANPAT RAI, 1992.
Lua MLA (9ú heag.)SUKLA, R C. CONTROL SYSTEMS. DHANPAT RAI, 1992.
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