Narayanan .P. (2018). Patent Law (4th.). Eastern Law House Pvt Ltd.
Chicago-čujuhus (17. p.)Narayanan .P. Patent Law. 4th. Lucknow: Eastern Law House Pvt Ltd, 2018.
MLA-čujuhus (9. p.)Narayanan .P. Patent Law. 4th. Eastern Law House Pvt Ltd, 2018.
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