U.S. GOVERNMENT PRINTING OFFICE WASHINGTON : 1971 For sale by the Superintendent of Documents, U.S. Government Printing Office Washington, D.C. 29402 - Price $2.75 (paper cover) JK 630 1949 Explanation . . . . . . . . . . . . ..... !9.7... Subtitle A-Office of the Secretary, Department of Housing and Urban |