Appraisal of Yong San Gang Irrigation Project-Stage I : Korea. - Washington D. C. : World Bank (WB) , 1971 - various pages : ill. ; 28 cm. - Report, no. PA-109a . Includes bibliographical references. Subjects--Topical Terms: Yong San Gang Irrigation Project-Stage I --Korea Gov. Doc. Class. No.: UN WB IDA R-PA-109a