Παραπομπή σε μορφή APA (7η εκδ.)

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

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (9th εκδ.)

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