Puga, D., & Venables, A. (2011). Agglomeration and Economic Development: Import Substitution vs. Trade Liberalisation.
芝加哥风格引文Puga, D., 与 A. Venables. Agglomeration and Economic Development: Import Substitution Vs. Trade Liberalisation. 2011.
MLA引文Puga, D., 与 A. Venables. Agglomeration and Economic Development: Import Substitution Vs. Trade Liberalisation. 2011.
警告：这些引文格式不一定是100％准确.