Organisation executive course  HCO division.    

 - California  Bridge publication inc          1991 
 - 1140p.:p.1121.,App.:p.1067-1076p  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>X:87.73.N91, NI.1