00576     2200193   4500001002100000005001500021035002000036008004100056245007800097100001700175250001200192260005100204300003500255084001700290082001100307650002700318700002200345990001500367INLIS00000000000373520240119101656  a0010-0621000021240119                f          0 eng  1 aThe economics of subsistence agriculture /cColin Clark: Margaret Haswell  aCLARK, Colin  a2nd ed.  aNew York :bST Martin's Press MacMillan,c1966  aviii, 216 p. :bill. ;c22 cm.  a631.16 CLA e  a631.16 4aAGRICULTURAL ECONOMICS1 aHASWELL, Margaret  a21/KA/2021