Engel, James F. Cases in promotional strategy / James F. Engel, W. Eayne Talarzyk - Rev. ed. - Homewood, Ill. : Richard D. Irwin , 1984 - 282p. : ill. ; 23 cm. - The Irwin series in marketing . ISBN: 0256031002 LCCN: 83-81767 Subjects--Topical Terms: Marketing--Case studiesAdvertising--Case studies