Emery, F. E. Systems thinking : selected readings / edited by F. E. Emery. - Harmondsworth : Penguin, 1969. - 398 p : ill ; 18 cm. + pbk. - Penguin modern management readings Penguin education . Includes bibliographical references and indexes. ISBN: 0140800719 Subjects--Topical Terms: Cybernetics. Dewey Class. No.: 658.4032