00319nam a2200109Ia 4500008004100000040003800041100001100079245003400090260005200124300001300176653002000189211228s9999    xx            000 0 und d  cJayakar Knowledge Resource Centre  aHarver 0aReady reference encyclopaedia  bHarver Educational service Inc.aNew Yorkc1969  a608p. p.  aReference books