APA (7th ed.) Citation

Panyella, A. (1975). Razas humanas. Sopena.

Chicago Style (17th ed.) Citation

Panyella, Augusto. Razas Humanas. Barcelona: Sopena, 1975.

MLA (9th ed.) Citation

Panyella, Augusto. Razas Humanas. Sopena, 1975.

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