APA (7th ed.) Citation

Twain, M., & Alfaro, M. (1972). Aventuras de Tom Sawyer. Ramon Sopena.

Chicago Style (17th ed.) Citation

Twain, Mark, and María Alfaro. Aventuras De Tom Sawyer. Barcelona, España: Ramon Sopena, 1972.

MLA (9th ed.) Citation

Twain, Mark, and María Alfaro. Aventuras De Tom Sawyer. Ramon Sopena, 1972.

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