Wadehra B.L. (2001). �Patents Trademarks copyright Designs�and�Geographical Predictions (2nd.). Universal Law Publishing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWadehra B.L. �Patents Trademarks Copyright Designs�and�Geographical Predictions. 2nd. New Delhi: Universal Law Publishing, 2001.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWadehra B.L. �Patents Trademarks Copyright Designs�and�Geographical Predictions. 2nd. Universal Law Publishing, 2001.
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