Zuo wu pin zhong zi yuan
By: Xu Yuntian, Dong Yuchen zhu ; Zhongguo nong xue hui bian
Contributors: Dong, Yuchen; Zhongguo nong xue hui
Series: Xian dai nong ye ke xue jiang zuo
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: 60
Subjects: Development; Seeds