(2005). Media product portfolios: Issues in management of multiple products and servicesEditor: Robert G. Picard. Lawrence Erlbaum Associates.
Chicago-referens (17:e uppl.)Media Product Portfolios: Issues in Management of Multiple Products and ServicesEditor: Robert G. Picard. Lawrence Erlbaum Associates, 2005.
MLA-referens (8:e uppl.)Media Product Portfolios: Issues in Management of Multiple Products and ServicesEditor: Robert G. Picard. Lawrence Erlbaum Associates, 2005.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.