Shou yi di jie li lun yan jiu

An edition of Shou yi di jie li lun yan jiu (1990)

Shou yi di jie li lun yan jiu

By Huanjin Yang

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Publish Date

1990

Publisher

Zhongguo jing ji chu ban she

Language

cmn

Pages

401

Description:

subjects: Diminishing returns, Land use, Agricultural productivity