Tapp, Alan Shu ju ku ying xiao( yuan shu di4 ban)= Principles of direct and database marketing : a digital orientation / [book] Alan Tapp, - 4th ed. - Beijing : ji xie gong ye, 2011. - ix, 344 p. ISBN: 9787111358619 Subjects--Topical Terms: Marketing LC Class. No.: HF5415 / .T174 2011