You yi nong chang wu fen chang er dui yin jin nong ye ji xie shi dian di jing ji xiao guo kao cha
By: Yang Yu chun, Yang rongqiu, Ni Weiyong
Publisher: Nong ye chu ban she; Xin hua shu dian Beijing fa xing suo fa xing
Published: 1981
Place of publication: Beijing
Language: chi
Number of pages: 69