Narayanan, P. (2018). Patent Drafting & Specification Writing (4th.). Eastern Law House.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNarayanan, P. Patent Drafting & Specification Writing. 4th. Eastern Law House, 2018.
एमएलए (9वां संस्करण) प्रशस्ति पत्रNarayanan, P. Patent Drafting & Specification Writing. 4th. Eastern Law House, 2018.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.