ebrary, Inc, Batabyal, A. A., & Nijkamp, P. (2011). Research tools in natural resource and environmental economics. World Scientific.
芝加哥风格引文ebrary, Inc, Amitrajeet A. Batabyal, 与 Peter Nijkamp. Research Tools in Natural Resource and Environmental Economics. Hackensack, N.J.: World Scientific, 2011.
MLA引文ebrary, Inc, et al. Research Tools in Natural Resource and Environmental Economics. World Scientific, 2011.
警告：这些引文格式不一定是100％准确.