Dyfyniad APA

Attfield, R. (1983). The ethics of environmental concern: The ethics of environmental concern. Basil Blackwell.

Dyfyniad Arddull Chicago

Attfield, Robin. The Ethics of Environmental Concern: The Ethics of Environmental Concern. Oxford: Basil Blackwell, 1983.

Dyfyniad MLA

Attfield, Robin. The Ethics of Environmental Concern: The Ethics of Environmental Concern. Basil Blackwell, 1983.

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