APA
Blackshaw P., . (2008). Satisfied Customers Tell Three Friends, Angry Customers Tell 3,000. : Crown Business.
Chicago
Blackshaw Pete, . 2008. Satisfied Customers Tell Three Friends, Angry Customers Tell 3,000. : Crown Business.
Harvard
Blackshaw P., . (2008). Satisfied Customers Tell Three Friends, Angry Customers Tell 3,000. : Crown Business.
MLA
Blackshaw Pete, . Satisfied Customers Tell Three Friends, Angry Customers Tell 3,000. : Crown Business. 2008.