Dyfyniad APA

Hawke, N. (2002). Environmental policy: Implementation and enforcement. Ashgate.

Dyfyniad Arddull Chicago

Hawke, Neil. Environmental Policy: Implementation and Enforcement. England: Ashgate, 2002.

Dyfyniad MLA

Hawke, Neil. Environmental Policy: Implementation and Enforcement. Ashgate, 2002.

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