篇号：1
题名：Violence and Farm Household Efficiency in Colombia
作者：
María A. González
Rigoberto A. Lopez

期刊全称或缩写：Economic Development and Cultural Change,
年份，卷（期），起止页码：  55:367–392, January 2007
电子链接：http://www.journals.uchicago.edu/doi/abs/10.1086/508715


篇号：2
题名：Farmer Education and Farm Efficiency: A Survey
作者：
Marlaine E. Lockheed,
T. Jamison, and
Lawrence J. Lau

期刊全称或缩写：Economic Development and Cultural Change,
年份，卷（期），起止页码： 29:37, October 1980

电子链接：http://www.journals.uchicago.edu/doi/abs/10.1086/451231