00381cam a2200133ua 4500041001000000082001800010100003000028245009000058250001200148260004600160300001200206504000500218700002400223  aengh  a338.9bWIL/EC  aWilliam son , Harold F  .  aEconomic development : Principles and paltrns / cA John Buttrick.hTextual Documents  a1 / b.  aNew Delhi : bPrentice Hall Inc , c1964.  a576 ; .  a1 aButtrick, John A  .