篇号: 
题名:A Soil-Quality Index and Its Relationship to Efficiency and Productivity Growth Measures: Two Decompositions 
作者:
Edward C. Jaenicke and Laura L. Lengnick 
期刊全称或缩写:American Journal of Agricultural Economics,
年份,卷(期),起止页码: Vol. 81, No. 4 (Nov., 1999), pp. 881-893 
(article consists of 13 pages) 
电子链接:
http://www.jstor.org/stable/1244331