APA
Friedman L. G., . (1999). The Channel Advantage. : Routledge.
Chicago
Friedman Lawrence G, . 1999. The Channel Advantage. : Routledge.
Harvard
Friedman L. G., . (1999). The Channel Advantage. : Routledge.
MLA
Friedman Lawrence G, . The Channel Advantage. : Routledge. 1999.