APA aipamena

Cooke, H. L. (1973). National Gallery. Verbo.

Chicago Style aipamena

Cooke, Hereward Lester. National Gallery. Verbo, 1973.

MLA aipamena

Cooke, Hereward Lester. National Gallery. Verbo, 1973.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.