APA (7th ed.) Citation

Ballesteros-Gaibrois, M., & Alborg, J. L. (1973). Historia universal (5a. ed.). Gredos.

Chicago Style (17th ed.) Citation

Ballesteros-Gaibrois, Manuel, and Juan Luis Alborg. Historia Universal. 5a. ed. Madrid: Gredos, 1973.

MLA (9th ed.) Citation

Ballesteros-Gaibrois, Manuel, and Juan Luis Alborg. Historia Universal. 5a. ed. Gredos, 1973.