Lowell, L. (2007). 42 Rules for Marketing. Prolibibris Publishing Media.
Chicago Style aipamenaLowell, Laura. 42 Rules for Marketing. USA: Prolibibris Publishing Media, 2007.
MLA aipamenaLowell, Laura. 42 Rules for Marketing. Prolibibris Publishing Media, 2007.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.