Organisation for Economic Co-operation and Development, Schneider, H., Vinke, J., & Weekes-Vagliani, W. (1993). Environmental education: An approach to sustainable development = L'education environnmentale : approaches pour un developpement durable. Organisation for Economic Co-operation and Development.
Παραπομπή σε μορφή Chicago (17η εκδ.)Organisation for Economic Co-operation and Development, Hartmut Schneider, Jacoline Vinke, και Winifred Weekes-Vagliani. Environmental Education: An Approach to Sustainable Development = L'education Environnmentale : Approaches Pour Un Developpement Durable. Paris: Organisation for Economic Co-operation and Development, 1993.
Παραπομπή σε μορφή MLA (9th εκδ.)Organisation for Economic Co-operation and Development, et al. Environmental Education: An Approach to Sustainable Development = L'education Environnmentale : Approaches Pour Un Developpement Durable. Organisation for Economic Co-operation and Development, 1993.