APA (7th ed.) Citation

Keller, W. (1960). Oriente occidente cero. Herrero.

Chicago Style (17th ed.) Citation

Keller, Werner. Oriente Occidente Cero. Herrero, 1960.

MLA (9th ed.) Citation

Keller, Werner. Oriente Occidente Cero. Herrero, 1960.

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