APA aipamena

PENGUIN BOOKS. YEAR BOOK 2002 C.S.R.

Chicago Style aipamena

PENGUIN BOOKS. YEAR BOOK 2002 C.S.R.

MLA aipamena

PENGUIN BOOKS. YEAR BOOK 2002 C.S.R.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.