00422    a2200133   450000500170000002000220001708200160003910000160005524500880007125000120015926000290017130000750020070000130027520250617061501.0  a978-0-367-44475-4  a658.872 CHA  aCHAFFEY, D.  aDigital Marketing Excellence: Planning, Optimizing and Integrating Online Marketing  a6th Ed.  aLondonbRoutledgec2023.  axxxvii,638p.:ill.;diagrams, pictures, tablesbGlossary and Indexc24cm  aPR Smith