Dyfyniad APA

Swedish Society for the Conservation of Nature. (1990). Saving the ozone layer: A global task. Swedish Society for the Conservation of Nature.

Dyfyniad Arddull Chicago

Swedish Society for the Conservation of Nature. Saving the Ozone Layer: A Global Task. Stockholm: Swedish Society for the Conservation of Nature, 1990.

Dyfyniad MLA

Swedish Society for the Conservation of Nature. Saving the Ozone Layer: A Global Task. Swedish Society for the Conservation of Nature, 1990.

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