Wadehra, B. L. (2004). Law relating to patents trade marks copyright design and geographical indications: Including semiconductor integrated circuits and layout-design, protection of plant varieties & TRIPS (3rd ed.). Universal Law publishing.

Wadehra, B. L. Law Relating to Patents Trade Marks Copyright Design and Geographical Indications: Including Semiconductor Integrated Circuits and Layout-design, Protection of Plant Varieties & TRIPS. 3rd ed. New Delhi: Universal Law publishing, 2004.

Wadehra, B. L. Law Relating to Patents Trade Marks Copyright Design and Geographical Indications: Including Semiconductor Integrated Circuits and Layout-design, Protection of Plant Varieties & TRIPS. 3rd ed. Universal Law publishing, 2004.