On estimating the economic cost of capital (with special reference to developing countries) - Washington D. C. : World Bank (WB) , 1965 - ii, 28p. : ill. ; 28 cm. - Report, no. EC-138 . Includes bibliographical references. Subjects--Topical Terms: CapitalInterestSaving and investment Gov. Doc. Class. No.: UN WB IDA R-EC-138