Fuchs, Laszlo. Partially ordered algebraic systems / Laszlo Fuchs. - Oxford : Pergamon Press , 1963 - ix, 229 p. ; 22 cm. - International series of monographs on pure and applied mathematics ; v.28 . Includes bibliographical references p. ( 215 -224 ) and index Subjects--Topical Terms: Groups theory.Fields, Algebraic. Dewey Class. No.: 512.86