APA (7th ed.) Citation

Palacio Valdés, A. (2011). The Fourth Estate, vol.1. Project Gutenberg.

Chicago Style (17th ed.) Citation

Palacio Valdés, Armando. The Fourth Estate, Vol.1. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Palacio Valdés, Armando. The Fourth Estate, Vol.1. Project Gutenberg, 2011.

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