Gaya APA

OSTERWALDER, A. (2010). BUSINESS MODEL GENERATION: A Handbook for Visionaries , Game Changers and Challengers . CANADA: John Wiley & Sons,Inc.

Gaya MLA

OSTERWALDER, ALEXANDER. "BUSINESS MODEL GENERATION: A Handbook for Visionaries , Game Changers and Challengers". CANADA: John Wiley & Sons,Inc, 2010. Text.