POPPLEWEL,OTHERS. (1990). BECOMING THE BEST. HITCH COCK PUB. CO.
Chicago Style aipamenaPOPPLEWEL,OTHERS. BECOMING THE BEST. U.S.A: HITCH COCK PUB. CO, 1990.
MLA aipamenaPOPPLEWEL,OTHERS. BECOMING THE BEST. HITCH COCK PUB. CO, 1990.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.