Leong, Yau Sing, 1899- Silver : an analysis of factors affecting its price / by Y. S. Leong. - Washington, D.C., The Brookings Institution, 1933. - xiv, 168 p. diagrs. 22 cm. - The Institute of economics of the Brookings Institution. Publicatio n no. 49 . Issued also as thesis Columbia University. Selected bibliography: p. 157-162. Subjects--Topical Terms: Silver.Silver mines and mining. Dewey Class. No.: 332.423 LEO