Dyfyniad APA

Alfthan, T., & Gagliardi, R. (1995). Environmental training: Policy and practice for sustainable development. Oxford and IBH Publication.

Dyfyniad Arddull Chicago

Alfthan, Torkel, and Raul Gagliardi. Environmental Training: Policy and Practice for Sustainable Development. New Delhi: Oxford and IBH Publication, 1995.

Dyfyniad MLA

Alfthan, Torkel, and Raul Gagliardi. Environmental Training: Policy and Practice for Sustainable Development. Oxford and IBH Publication, 1995.

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