00321nam a2200121 a 4500008004100000050002100041100002000062245003500082250001200117260003800129300002300167350000900190120416s1953    ||||||||||||||||| ||    u  aHF 5549.5.R3 Lai  aLaird, Donald A10aIncreasing personal efficiency  a4th ed.  aNew YorkbHarper & Brothersc1953  aviii, 294p. : ill.  a0.00