Burnham, R., Dyer, A., Martin, G., Kanipe, J., Garfinkle, R. A., & Levy, D. H. (2007). A guide to the night sky. San Francisco, CA: : Fog City Press.

Burnham, Robert, Alan Dyer, George Martin, Jeff Kanipe, Robert A. Garfinkle, and David H. Levy. A Guide to the Night Sky. San Francisco, CA: : Fog City Press, 2007.

Burnham, Robert, et al. A Guide to the Night Sky. San Francisco, CA: : Fog City Press, 2007.