Intergovernmental Conference on Environmental Education : Tbilisi, Unesco, & United Nations Environment Programme. (1978). Intergovernmental conference on environmental education: Final report. UNIPUB.
Παραπομπή σε μορφή Chicago (17η εκδ.)Intergovernmental Conference on Environmental Education : Tbilisi, Unesco, και United Nations Environment Programme. Intergovernmental Conference on Environmental Education: Final Report. Paris: UNIPUB, 1978.
Παραπομπή σε μορφή MLA (9th εκδ.)Intergovernmental Conference on Environmental Education : Tbilisi, et al. Intergovernmental Conference on Environmental Education: Final Report. UNIPUB, 1978.
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