00315nam a2200133Ia 4500008004100000020001500041041001200056082001600068100001700084245003200101260002100133300000800154650001900162221030s9999    xx            000 0 und d  a0706994361  aEnglish  a105.23bKha  aV. K. Khanna 0aLattices & Boolean Algebras  bVikas Pub.c2000  a148  aBE Mathematics