Allenby, R. B. J. T. Rings, fields, and groups : an introduction to abstract algebra / R.B.J.T. Allenby. - 2nd ed. - London ; New York : E. Arnold, 1991. - xxvi, 383 p. : ISBN: 9788131201237 Subjects--Topical Terms: Algebra, Abstract. Dewey Class. No.: 512.64 / ALL