Gurdip Singh. (2016). Environmental Law (2nd ed.). Eastern Book Company.
Dyfyniad Arddull ChicagoGurdip Singh. Environmental Law. 2nd ed. Lucknow: Eastern Book Company, 2016.
Dyfyniad MLAGurdip Singh. Environmental Law. 2nd ed. Eastern Book Company, 2016.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.