Huang He liu yu huan jing yan bian yu shui sha yun xing gui lü yan jiu wen jiDakang Zuo · First published 1991Open the Tome
Resources, environment and regional developmentLeung Chi-Kung, Jim Chi-Yung, Zuo Dakang · First published 1989Open the Tome
Resources, environment, and regional developmentChi-yung Jim, Dakang Zuo · First published 1989Open the Tome
Huabei Pingyuan shui liang ping heng yu nan shui bei diao yan jiu wen jiDakang Zuo · First published 1985Open the Tome
Huang Huai Hai Pingyuan nong ye zi ran tiao jian he qu yu huan jing yan jiuDakang Zuo · First published 1900Open the Tome
