Gentry, Dwight L. Elements of business enterprise [by] Dwight L. Gentry and Charles A. Taff. - 2d ed. - New York, Ronald Press Co. [1966] - vi, 624 p. illus. 24 cm. LCCN: 66016843 LC Class. No.: HF5500 .G39 1966 / .G39 1966 Dewey Class. No.: 658