APA aipamena

Spier, J. (2001). A catalogue of the Calouste Gulbenkian collection of gems. Calouste Gulbenkian Foundation.

Chicago Style aipamena

Spier, Jeffrey. A Catalogue of the Calouste Gulbenkian Collection of Gems. Calouste Gulbenkian Foundation, 2001.

MLA aipamena

Spier, Jeffrey. A Catalogue of the Calouste Gulbenkian Collection of Gems. Calouste Gulbenkian Foundation, 2001.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.