APA (7th ed.) Citation

Guerrero, A. (1800). [Retrato desconocido]. [s.n.].

Chicago Style (17th ed.) Citation

Guerrero, Antonio. [Retrato Desconocido]. Madrid: [s.n.], 1800.

MLA (9th ed.) Citation

Guerrero, Antonio. [Retrato Desconocido]. [s.n.], 1800.

Warning: These citations may not always be 100% accurate.