APA aipamena

BEATH, B. (1977). Marco polo A half-hour music drama for children. J. Albert & Son.

Chicago Style aipamena

BEATH, Betty. Marco Polo A Half-hour Music Drama for Children. J. Albert & Son, 1977.

MLA aipamena

BEATH, Betty. Marco Polo A Half-hour Music Drama for Children. J. Albert & Son, 1977.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.