Osterwalder, A., & Papadakos, T. (2014). Value proposition design: How to create products and services customers want : get started with;. Wiley.
Lua i Stíl Chicago (17ú heag.)Osterwalder, Alex, agus Trish Papadakos. Value Proposition Design: How to Create Products and Services Customers Want : Get Started with;. Hoboken, New Jersey: Wiley, 2014.
Lua MLA (9ú heag.)Osterwalder, Alex, agus Trish Papadakos. Value Proposition Design: How to Create Products and Services Customers Want : Get Started with;. Wiley, 2014.
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