Garfinkle, D., & Garfinkle, R. (2008). Three steps to the universe: From the sun to black holes to the mystery of dark matter. University of Chicago Press.
Chicago Style (17th ed.) CitationGarfinkle, David, and Richard Garfinkle. Three Steps to the Universe: From the Sun to Black Holes to the Mystery of Dark Matter. Chicago: University of Chicago Press, 2008.
MLA (9th ed.) CitationGarfinkle, David, and Richard Garfinkle. Three Steps to the Universe: From the Sun to Black Holes to the Mystery of Dark Matter. University of Chicago Press, 2008.
Warning: These citations may not always be 100% accurate.