Vandana, S. (2001). Patents: Myths and reality. Penguin.
Dyfyniad Arddull ChicagoVandana, Shiva. Patents: Myths and Reality. New Delhi: Penguin, 2001.
Dyfyniad MLAVandana, Shiva. Patents: Myths and Reality. Penguin, 2001.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.