APA (7th ed.) Citation

Huxley, A., Revol, E. L., & Smith, G. (1974). Cartas. Sudamericana.

Chicago Style (17th ed.) Citation

Huxley, Aldous, Enrique L. Revol, and Grover Smith. Cartas. Buenos Aires: Sudamericana, 1974.

MLA (9th ed.) Citation

Huxley, Aldous, et al. Cartas. Sudamericana, 1974.