Fill, Karen E. Business to business marketing : relationships, sytems and communications Fill, Karen E. - England : Pearson Education Limited, c2005. - xix, 380 pages : chiefly illustration ; 24 cm. ISBN: 0-273-68279-2. Subjects--Topical Terms: 3. Sales promotion. Dewey Class. No.: Circ. 658.8 F484b 2005