text Chicago Aldine 1970 eng xiii, 481 p.: ill.; 26 cm. ; 26 cm. Clifton R. Wharton Incl. Index SUBSISTENCE FARMING ECONOMIC DEVELOPMENT 631 631 SUB 220414 20220414104817 INLIS000000000004320 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)