Ahmed, M. N. (2013). A structural Ricardian valuation of climate change impacts on agriculture in Pakistan. PL Academic Research.
芝加哥风格引文Ahmed, Mirza Nomman. A Structural Ricardian Valuation of Climate Change Impacts on Agriculture in Pakistan. Frankfurt am Main, Germany: PL Academic Research, 2013.
MLA引文Ahmed, Mirza Nomman. A Structural Ricardian Valuation of Climate Change Impacts on Agriculture in Pakistan. PL Academic Research, 2013.
警告：这些引文格式不一定是100％准确.