Alfthan, T., & Gagliardi, R. (1995). Environmental training: Policy and practice for sustainable development. Oxford and IBH Publication.
Chicago-referens (17:e uppl.)Alfthan, Torkel, och Raul Gagliardi. Environmental Training: Policy and Practice for Sustainable Development. New Delhi: Oxford and IBH Publication, 1995.
MLA-referens (9:e uppl.)Alfthan, Torkel, och Raul Gagliardi. Environmental Training: Policy and Practice for Sustainable Development. Oxford and IBH Publication, 1995.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.