APA (7th ed.) Citation

Álvarez del Vayo, J. (1950). The last optimist. Putnam.

Chicago Style (17th ed.) Citation

Álvarez del Vayo, Julio. The Last Optimist. London: Putnam, 1950.

MLA (9th ed.) Citation

Álvarez del Vayo, Julio. The Last Optimist. Putnam, 1950.

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