Gagliardi, R. (1994). Environmental training: Policy and practice for sustainable development. Oxford & IBH.
Chicago-čujuhus (17. p.)Gagliardi, Raul. Environmental Training: Policy and Practice for Sustainable Development. New Delhi: Oxford & IBH, 1994.
MLA-čujuhus (9. p.)Gagliardi, Raul. Environmental Training: Policy and Practice for Sustainable Development. Oxford & IBH, 1994.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.