Shulong Gan

Shulong Gan · s.n., 1986 or 1987

Sayfa sayısı yok · 1986

Agricultural geography / Crop zones

Shulong Gan · Sichuan sheng she hui ke xue yuan chu ban she

800 sayfa · 1988

Economic Botany / Economic Zoology / Agricultural resources

Shulong Gan · Sichuan sheng she hui ke xue yuan chu ban she

Sayfa sayısı yok · 1986

Agricultural geography / Crop zones

Hongqian Tang, Shulong Gan, Rongwu Hong · Sichuan sheng xin hua shu dian fa xing

151 sayfa · 1985

Agricultural laborers / Labor mobility

Hongqian Tang, Shulong Gan, Rongwu Hong · Sichuan sheng xin hua shu dian fa xing

151 sayfa · 1985

Agriculural labors / Labor mobility