text London MacMillan 1957 3rd ed. eng xv, 720 p. : ill. ; 22 cm. Colin Clark Index: p. 705-714 ECONOMIC DEVELOPMENT 338.9 338.9 CLA c 221127 20221127024923 INLIS000000000007692 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)