PETERS TOM. (1997). CIRCLE OF INNOVATION. HODDER & STOUGHTON.
Chicago Style aipamenaPETERS TOM. CIRCLE OF INNOVATION. LONDON: HODDER & STOUGHTON, 1997.
MLA aipamenaPETERS TOM. CIRCLE OF INNOVATION. HODDER & STOUGHTON, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.