Cita APA (7a ed.)

Berman Saul J. (2011). Not For Free: Revenue Strategies for a new world. Harvard Business Review Press.

Cita Chicago Style (17a ed.)

Berman Saul J. Not For Free: Revenue Strategies for a New World. Boston: Harvard Business Review Press, 2011.

Cita MLA (9a ed.)

Berman Saul J. Not For Free: Revenue Strategies for a New World. Harvard Business Review Press, 2011.