(2000). Matter, matter everywhere. New York: Mcgraw-Hill School /School division.
Chicago Style aipamenaMatter, Matter Everywhere. New York: Mcgraw-Hill School /School division, 2000.
MLA aipamenaMatter, Matter Everywhere. New York: Mcgraw-Hill School /School division, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.