The Milky Way. National Geographic. Copyright 2015 National Geographic Society, Washington, D.C. 22040The Milky Way. National Geographic

Chicago citation style
National Geographic Society (U.S.). The Milky Way. National Geographic. Copyright 2015 National Geographic Society, Washington, D.C. 22040,The Milky Way. National Geographic. 2010-2015. Retrieved from the Digital Public Library of America, https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~292156~90064301. (Accessed December 9, 2018.)
APA citation style
National Geographic Society (U.S.), (2010-2015) The Milky Way. National Geographic. Copyright 2015 National Geographic Society, Washington, D.C. 22040,The Milky Way. National Geographic. Retrieved from the Digital Public Library of America, https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~292156~90064301
MLA citation style
National Geographic Society (U.S.). Retrieved from the Digital Public Library of America <https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~292156~90064301>.
Note: These citations are programmatically generated and may be incomplete.