Dyfyniad APA

(1998). Corporate environmental management 1: Systems and strategies. London: Earthscan.

Dyfyniad Arddull Chicago

Corporate Environmental Management 1: Systems and Strategies. London: Earthscan, 1998.

Dyfyniad MLA

Corporate Environmental Management 1: Systems and Strategies. London: Earthscan, 1998.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.