Sielaff, Theodore J. Introduction to business American enterprise in action Theodore J. Sielaff and John W. Aberle. - 2nd ed. - Belmont, Calif. Wadsworth Pub. Co. [1966] - 530 p. ill. Includes bibliographies. LCCN: 69014214 Subjects--Topical Terms: Business LC Class. No.: HF5351 / .S57 1969 Dewey Class. No.: 658