APA (7th ed.) Citation

Friedl, L., & Yuen, K. (2012). Earth as art. National Aeronautics and Space Administration.

Chicago Style (17th ed.) Citation

Friedl, Lawrence, and Karen Yuen. Earth as Art. Washington, DC: National Aeronautics and Space Administration, 2012.

MLA (9th ed.) Citation

Friedl, Lawrence, and Karen Yuen. Earth as Art. National Aeronautics and Space Administration, 2012.