APA (7th ed.) Zitazioa

Blackie & Son. Blackie & Son's Books for Young People, Catalogue - 1891.

Chicago Style (17th ed.) Zitazioa

Blackie & Son. Blackie & Son's Books for Young People, Catalogue - 1891.

MLA (9th ed.) Zitazioa

Blackie & Son. Blackie & Son's Books for Young People, Catalogue - 1891.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.