Knowles, Asa S.
Management of manpower
Macmillan, 1943
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Manpower planning
edited by John Edwards ... [et al.]
John Wiley and Sons, 1983
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Samuelson, Paul Anthony, 1915-2009
Economics
McGraw-Hill, 2010
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Sloman, John
Economics
Harvester Wheatsheaf, 1994
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Lipsey, Richard G.
Economics
Harper Collin, 1996
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