BALLANEY P L. (2005). THEORY OF MACHINES AND MECHANISMS IN SI UNITS. KHANNA PUBLISHERS.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBALLANEY P L. THEORY OF MACHINES AND MECHANISMS IN SI UNITS. KHANNA PUBLISHERS, 2005.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBALLANEY P L. THEORY OF MACHINES AND MECHANISMS IN SI UNITS. KHANNA PUBLISHERS, 2005.
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