Katzentein, Hubert Direct marketing / Herbert Katzenstein, William S. Sachs. - 2nd ed. - New York : Macmillan Pub, c1992. - xiii, 514p. : ill. ; 24 cm. Glossary : p. 495 - 507. Includes index. ISBN: 0023624256 Subjects--Topical Terms: Direct marketing.