Stone, Harold S., 1938- Discrete mathematical structures and their applications/ Harold S. Stone. - Chicago ; Science Research Associates, [1973]. - 401 p.: illus., 25 cm. - The SRA computer science series. . Bibliography: p. 388-392. LCCN: 72096797 //r902 Subjects--Topical Terms: Algebra, Abstract.Group theory.Machine theory. Dewey Class. No.: 512