00413nam a2200157 a 45000010018000000050017000180080041000350900014000761000019000902450054001092600019001633000011001825010012001936500035002059990015002400000000000003154820260805123603.0070429s1958    us            000a  eng    a331bH-540 aHendry W. John10aA manual of time and motion studypHendry W. John  aLondonbc1958  a182 p.  an/239844 aЭкономикаaтруда  c5388d5388