APA Citation

Simmons, A., & Simmons, A. (1979). Alerta en la tierra. Barcelona: Toray.

Chicago Style Citation

Simmons, Alex, and Alex Simmons. Alerta En La Tierra. Barcelona: Toray, 1979.

MLA Citation

Simmons, Alex, and Alex Simmons. Alerta En La Tierra. Barcelona: Toray, 1979.

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