APA (7th ed.) Citation
Duby, G., & López Alonso, C. (1997). Guillermo el mariscal (1 ed.). Alianza Editorial.
Chicago Style (17th ed.) Citation
Duby, Georges, and Carmen López Alonso. Guillermo El Mariscal. 1 ed. Madrid: Alianza Editorial, 1997.
MLA (9th ed.) Citation
Duby, Georges, and Carmen López Alonso. Guillermo El Mariscal. 1 ed. Alianza Editorial, 1997.
Warning: These citations may not always be 100% accurate.