APA (7th ed.) Citation

Gutiérrez J., J., & Astudillo C., W. Bella Rica: Polo minero.

Chicago Style (17th ed.) Citation

Gutiérrez J., Julio, and Wilfrido Astudillo C. Bella Rica: Polo Minero.

MLA (8th ed.) Citation

Gutiérrez J., Julio, and Wilfrido Astudillo C. Bella Rica: Polo Minero.

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