Khanna, V. Lattices and boolean algebras : first concepts / Vijay K. Khanna - 2nd ed. - New Delhi : Vikash Publishing House Pvt. Ltd., 2011. - 156 p. ; ill. : 21 cm. It includes bibliographical information and index. ISBN: 9788125916536 Subjects--Topical Terms: MathematicsAlgebra Posets and lattices Dewey Class. No.: 511.324 / KHA