APA (7th ed.) Citation

United States. National Aeronautics and Space Administration. (2002). Earth & Mars, as different as they are alike (Rev. 1 6/02.). National Aeronautics and Space Administration.

Chicago Style (17th ed.) Citation

United States. National Aeronautics and Space Administration. Earth & Mars, as Different as They Are Alike. Rev. 1 6/02. [Washington, D.C.]: National Aeronautics and Space Administration, 2002.

MLA (9th ed.) Citation

United States. National Aeronautics and Space Administration. Earth & Mars, as Different as They Are Alike. Rev. 1 6/02. National Aeronautics and Space Administration, 2002.