SNOW, T. P. (1985). The Dynamic Universe An Introduction To Astronomy Theodore P. Snow. West Publishing Company.
Chicago-referens (17:e uppl.)SNOW, Theodore P. The Dynamic Universe An Introduction To Astronomy Theodore P. Snow. West Publishing Company, 1985.
MLA-referens (8:e uppl.)SNOW, Theodore P. The Dynamic Universe An Introduction To Astronomy Theodore P. Snow. West Publishing Company, 1985.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.