APA (7th ed.) Citation

Regláa, J., & Carsten, F. L. (1971). Historia del mundo moderno. Ramón Sopena.

Chicago Style (17th ed.) Citation

Regláa, Juan, and Francis Ludwig Carsten. Historia Del Mundo Moderno. Barcelona: Ramón Sopena, 1971.

MLA (9th ed.) Citation

Regláa, Juan, and Francis Ludwig Carsten. Historia Del Mundo Moderno. Ramón Sopena, 1971.

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