Bowran, A. P. A Boolean algebra, abstract and concrete / by A.P. Bowran. - London: New York : Macmillan; St Martin's Press , [1965] - vii, 93 p.: illus.; 22 cm. - Introductory monographs in mathematics. . Includes bibliographic refrences( p. 50-51) and index. LCCN: 65-029940 Subjects--Topical Terms: Algebra, Boolean. Dewey Class. No.: 511.324