Gaya APA

Not For Free: Revenue Strategies for a New World. (2015). Boston: Harvard Business Press.

Gaya Chicago

Not For Free: Revenue Strategies for a New World. Cet.5. Boston: Harvard Business Press, 2015. .

Gaya MLA

Not For Free: Revenue Strategies for a New World. Cet.5. Boston: Harvard Business Press, 2015. .

Gaya Turabian

Not For Free: Revenue Strategies for a New World. Boston: Harvard Business Press, 2015. .