Wadehra B.L. (2001). �Patents Trademarks copyright Designs�and�Geographical Predictions (2nd.). Universal Law Publishing.
Dyfyniad Arddull ChicagoWadehra B.L. �Patents Trademarks Copyright Designs�and�Geographical Predictions. 2nd. New Delhi: Universal Law Publishing, 2001.
Dyfyniad MLAWadehra B.L. �Patents Trademarks Copyright Designs�and�Geographical Predictions. 2nd. Universal Law Publishing, 2001.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.