Spadley, J. L. (1994). Visions that shaped the universe: A history of scientific ideas about the universe. McGraw-hill.
Chicago-referens (17:e uppl.)Spadley, Joseph L. Visions That Shaped the Universe: A History of Scientific Ideas About the Universe. New York: McGraw-hill, 1994.
MLA-referens (9:e uppl.)Spadley, Joseph L. Visions That Shaped the Universe: A History of Scientific Ideas About the Universe. McGraw-hill, 1994.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.