Newcomb, D. (2009). God's angels and satan's demons: Who and what these Ufos really are (1. print.). PublishAmerica.
Chicago-Zitierstil (17. Ausg.)Newcomb, Dudley. God's Angels and Satan's Demons: Who and What These Ufos Really Are. 1. print. Baltimore, Md: PublishAmerica, 2009.
MLA-Zitierstil (9. Ausg.)Newcomb, Dudley. God's Angels and Satan's Demons: Who and What These Ufos Really Are. 1. print. PublishAmerica, 2009.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.