APA Citation

Polanski, R., & Speak Up. (2010). El escritor. Madrid: Aurum.

Chicago Style Citation

Polanski, Roman, and Speak Up. El Escritor. Madrid: Aurum, 2010.

MLA Citation

Polanski, Roman, and Speak Up. El Escritor. Madrid: Aurum, 2010.

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