Manes, Ernest G., Algebraic theories / E. G. Manes. - New York : Springer-Verlag, 1976. - 356 p. : 24 cm. - Graduate texts in mathematics ; v. 26 . Includes index. ISBN: 038790140X Subjects--Topical Terms: Algebra, Universal.Categories (Mathematics) Dewey Class. No.: 512 MAN