APA (7th ed.) Citation

Ruiz, A. L. (1997). The Origin of the Universe. Sterling Publishing Co, Inc.

Chicago Style (17th ed.) Citation

Ruiz, Andreas Llamas. The Origin of the Universe. Sterling Publishing Co, Inc, 1997.

MLA (8th ed.) Citation

Ruiz, Andreas Llamas. The Origin of the Universe. Sterling Publishing Co, Inc, 1997.

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