APA (7th ed.) Citation

(2012). Understanding earth, the icy arctic. National Aeronautics and Space Administration, Goddard Space Flight Center.

Chicago Style (17th ed.) Citation

Understanding Earth, the Icy Arctic. Greenbelt, Maryland: National Aeronautics and Space Administration, Goddard Space Flight Center, 2012.

MLA (9th ed.) Citation

Understanding Earth, the Icy Arctic. National Aeronautics and Space Administration, Goddard Space Flight Center, 2012.