Gaya APA

BALTER, Dave, John Butman. (2005). Grapevine : the new art of word-of-mouth marketing . New York: Portfolio.

Gaya Chicago

BALTER, Dave, John Butman. Grapevine : the new art of word-of-mouth marketing. New York: Portfolio, 2005. Text.

Gaya MLA

BALTER, Dave, John Butman. Grapevine : the new art of word-of-mouth marketing. New York: Portfolio, 2005. Text.

Gaya Turabian

BALTER, Dave, John Butman. Grapevine : the new art of word-of-mouth marketing. New York: Portfolio, 2005. Print.