00618nam a2200217Ia 450000500170000000800410001701000190005804000190007704100120009608200150010810000160012324500790013925000120021826000360023030000320026650400340029865000150033265100160034770000270036385000100039020230405094852.0131103s9999    xx            000 0 und d  aSBN :333036883  aLoreto College  aEnglish  a338.1bCLA  aClark,Colin 4aThe Economics of Subsistence AgriculturecColin Clark and Margaret Haswell  a4th ed.  aLondonbMacMillan and Co.c1970  axiii,267 p.b illus.,tables  aIncludes bibliography & index  aProduction  aAgriculture  aHaswell,Margaret,auth.  aLCLIB