TY  - BOOK
AU  - Aaker David A
TI  - Brand Portfolio Strategy : Creating Relevance, Differentiation, Energy, Leverage and Clarity
SN  - 0743249380
U1  - 659 
PY  - 2004///
CY  - New York
PB  - Free Press
KW  - Brand Strategy
KW  - Marketing Management
ER  -