APA (7th ed.) Citation

Panyella, A., & Amil Mengual, Z. (1961). Razas humanas. Ramón Sopena.

Chicago Style (17th ed.) Citation

Panyella, Augusto, and Zeferina Amil Mengual. Razas Humanas. Barcelona: Ramón Sopena, 1961.

MLA (9th ed.) Citation

Panyella, Augusto, and Zeferina Amil Mengual. Razas Humanas. Ramón Sopena, 1961.

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