Berman, S. J. (2011). Not for free: Making money in the digital age. Boston, Mass: Harvard Business Review Press.
Chicago ZitierstilBerman, Saul Jay. Not for Free: Making Money in the Digital Age. Boston, Mass: Harvard Business Review Press, 2011.
MLA ZitierstilBerman, Saul Jay. Not for Free: Making Money in the Digital Age. Boston, Mass: Harvard Business Review Press, 2011.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.