On the basic principles of the change in the structure of agricultural techniques [China]
1989
Feng Haifa (Northwest Agricultural Univ. Yangling, Shaanxi (China). Dept. of Agricultural Economy)
AGROVOC关键词
书目信息
页码
pp. 5-8
其它主题
Tecnicas biologicas; Technique biologique; Biological techniques; Estructura agricola
语言
中国人
注释
1 ill., Summary (Ch)
类型
Summary
1990-08-15
AGRIS AP