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200 1 $a<<The >>Demand and Supply of Scientific Personnel$fDavid M. Blank, George J. Stigler.
210   $aNew York$cNational Bureau of Economic Research$d1957
215   $aXIX,, 200 p.$d24 cm
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700  1$aBlank,$bDavid M.$0234000
702  1$aStigler,$bGeorge Joseph$f<1911-1991>
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