Παραπομπή σε μορφή APA (7η εκδ.)

Unesco-UNEP International Environmental Education Programme, Young, A. J., & McElhone, M. J. (1986). Guidelines for the development of non-normal environmental education. UNESCO.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Unesco-UNEP International Environmental Education Programme, A. J. Young, και M. J. McElhone. Guidelines for the Development of Non-normal Environmental Education. Paris: UNESCO, 1986.

Παραπομπή σε μορφή MLA (9th εκδ.)

Unesco-UNEP International Environmental Education Programme, et al. Guidelines for the Development of Non-normal Environmental Education. UNESCO, 1986.