Author

Qingping Zheng

2 books found

Cover of Zhongguo nong ye jing ji shi

Zhongguo nong ye jing ji shi

Chen Yue, Qingping Zheng, Xixian Wang · First published 1989

Cover of Zhongguo jin dai nong ye jing ji shi gai lun

Zhongguo jin dai nong ye jing ji shi gai lun

Qingping Zheng · First published 1987