APA (7th ed.) Citation

Academia Alfonso X el Sabio & Ballesteros Beretta, A. (1963). Alfonso X el Sabio. Salvat.

Chicago Style (17th ed.) Citation

Academia Alfonso X el Sabio and Antonio Ballesteros Beretta. Alfonso X El Sabio. Barcelona [etc.]: Salvat, 1963.

MLA (9th ed.) Citation

Academia Alfonso X el Sabio and Antonio Ballesteros Beretta. Alfonso X El Sabio. Salvat, 1963.

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