Chaffey, Dave Digital marketing: stratergy, implementation and practice (5th ed) Dave Chaffey, Fiona Ellis-Chadwick - 5th ed - Essex: Pearson, 2012. - xxix. 698 p. : col. ill. ; 27 cm. Include index. ISBN: 9780273746102 Subjects--Topical Terms: --Internet marketing--Management--Electronic commerce LC Class. No.: HF5415.1265 / .C43 2012