APA (7th ed.) Citation

Duby, G., & López Alonso, C. (1987). Guillermo el Mariscal. Alianza Editorial.

Chicago Style (17th ed.) Citation

Duby, Georges, and Carmen López Alonso. Guillermo El Mariscal. Madrid: Alianza Editorial, 1987.

MLA (9th ed.) Citation

Duby, Georges, and Carmen López Alonso. Guillermo El Mariscal. Alianza Editorial, 1987.

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