Energy inputs and returns from various cropping systems [Costs and returns in energy values, field crops, Michigan].
1977
Christenson D.R.
书目信息
Extension Bulletin - Michigan State University
期
1165.
语言
英语
注释
AVAILABILITY: NAL (275.29 M58B).
类型
Monograph; Non Conventional
团体作者
Michigan State University. Cooperative Extension Service.
2012-11-15
AGRIS AP
