SCHONBERGER RIC. (1990). BUILDING A CHAIN OF CUSTOMERS. THE FREE PRESS.
Chicago Style aipamenaSCHONBERGER RIC. BUILDING A CHAIN OF CUSTOMERS. NEW YORK: THE FREE PRESS, 1990.
MLA aipamenaSCHONBERGER RIC. BUILDING A CHAIN OF CUSTOMERS. THE FREE PRESS, 1990.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.