APA Style
Making “freemium” work . (May 2014).
Chicago:
Harvard Business School Publications.
Chicago Style
Making “freemium” work .
.
Chicago:
Harvard Business School Publications,
May 2014.
.
MLA Style
Making “freemium” work .
.
Chicago:
Harvard Business School Publications,
May 2014.
.
Turabian Style
Making “freemium” work .
Chicago:
Harvard Business School Publications,
May 2014.
.