APA aipamena

(2000). Matter. New York: Mcgraw-Hill School /School division.

Chicago Style aipamena

Matter. New York: Mcgraw-Hill School /School division, 2000.

MLA aipamena

Matter. New York: Mcgraw-Hill School /School division, 2000.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.