APA-viite (7. p.)
ebrary, Inc, Batabyal, A. A., & Nijkamp, P. (2011). Research tools in natural resource and environmental economics. World Scientific.
Chicago-viite (17. p.)
ebrary, Inc, Amitrajeet A. Batabyal, ja Peter Nijkamp. Research Tools in Natural Resource and Environmental Economics. Hackensack, N.J.: World Scientific, 2011.
MLA-viite (9. p.)
ebrary, Inc, et al. Research Tools in Natural Resource and Environmental Economics. World Scientific, 2011.
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