00440nam a2200145 a 450000500170000000800410001704100080005808200120006610000320007824500620011025000120017226400430018430000370022750000300026420260717091415.0260717s1990    ii            000 0 eng d  aeng04a658.3121 aInternational Labour Office10aIntroduction to work study /cInternational Labour Office  a3rd ed. 1aBombay :bUniversal Publishing,c1990.  axx, 436 p. illus., plate. 28 cm.  aBibliography: p. 433-436.