APA (7th ed.) Citation

Hooper, D. (2006). Dark cosmos: In search of our universe's missing mass and energy. Smithsonian Books/Collins.

Chicago Style (17th ed.) Citation

Hooper, Dan. Dark Cosmos: In Search of Our Universe's Missing Mass and Energy. New York: Smithsonian Books/Collins, 2006.

MLA (9th ed.) Citation

Hooper, Dan. Dark Cosmos: In Search of Our Universe's Missing Mass and Energy. Smithsonian Books/Collins, 2006.