Rogers, P. P., Jalal, K. F., & Boyd, J. A. (2006). An introduction to sustainable development. The Continuing Education Division, Harvard University and Glen Educational Foundation.
Chicago-viite (17. p.)Rogers, Peter P., Kazi F. Jalal, ja John A. Boyd. An Introduction to Sustainable Development. [Cambridge, Mass.]: The Continuing Education Division, Harvard University and Glen Educational Foundation, 2006.
MLA-viite (9. p.)Rogers, Peter P., et al. An Introduction to Sustainable Development. The Continuing Education Division, Harvard University and Glen Educational Foundation, 2006.
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