00283nam a2200109 a 4500008004100000050001800041100002000059245002400079260004000103300002100143350000900164120416s1964    ||||||||||||||||| ||    u  aHF 5548.8 Vro  aVroom, Victor H10aWork and motivation  aNew YorkbJohn Wiley and Sonsc1964  aix, 331p. : ill.  a0.00