Gaya APA
Berman, Saul J.. (2011).
Not for Free : Revenue Strategies For A New World .
USA:
Harvard Business Review.
Gaya Chicago
Berman, Saul J..
Not for Free : Revenue Strategies For A New World.
USA:
Harvard Business Review,
2011.
.
Gaya MLA
Berman, Saul J..
Not for Free : Revenue Strategies For A New World.
USA:
Harvard Business Review,
2011.
.
Gaya Turabian
Berman, Saul J..
Not for Free : Revenue Strategies For A New World.
USA:
Harvard Business Review,
2011.
.