Deismireacht APA

Berman, S. J. 1. (2011). Not for free: Making money in the digital age. Boston, Mass: Harvard Business Review Press.

Trích dẫn kiểu Chicago

Berman, Saul Jay 1946-. Not for Free: Making Money in the Digital Age. Boston, Mass: Harvard Business Review Press, 2011.

Deismireacht MLA

Berman, Saul Jay 1946-. Not for Free: Making Money in the Digital Age. Boston, Mass: Harvard Business Review Press, 2011.

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