text Washington, D.C National Planning Association 1958 eng viii, 146 p. : ill. ; 23 cm. Bibl.: p. 147-150 William H. Stead ECONOMIC DEVELOPMENT PUERTO RICO 338.984(729.5) 338.984(729.5) STE f 220326 20220326020056 INLIS000000000025300 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)