Blank, David M. The demand and supply of scientific personnel / by David Blank and George J. Stigler - New York : National Bureau of Economic Research, Inc., 1957 - xix, 200 p. : ill. ; 23 cm. - National bureau of economic research. General series ; 62 . Includes index ISBN: USD 4.00 Subjects--Topical Terms: ScientistsEngineersChemists Dewey Class. No.: 506.9