International Society for Ecological Economics, Constanza, R., Segura Bonilla, O., & Martinez Alier, J. (1996). Getting down to earth: Practical applications of ecological economics. Island Press.
Παραπομπή σε μορφή Chicago (17η εκδ.)International Society for Ecological Economics, Robert Constanza, Olman Segura Bonilla, και Juan Martinez Alier. Getting Down to Earth: Practical Applications of Ecological Economics. Washington: Island Press, 1996.
Παραπομπή σε μορφή MLA (9th εκδ.)International Society for Ecological Economics, et al. Getting Down to Earth: Practical Applications of Ecological Economics. Island Press, 1996.
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