APA (7th ed.) Citation

Penny, A., Davis, G., Calcutt, S., Drummond, J., Naylor, D., & Seager, S. (2001). MUSE: Looking for life on Earth.

Chicago Style (17th ed.) Citation

Penny, A., G. Davis, S. Calcutt, JR Drummond, D. Naylor, and S. Seager. MUSE: Looking for Life on Earth. 2001.

MLA (9th ed.) Citation

Penny, A., et al. MUSE: Looking for Life on Earth. 2001.