APA (7e ed.) Bronvermelding
ebrary, Inc, Vakoch, D. A., & Harrison, A. A. (2011). Civilizations beyond earth: Extraterrestrial life and society. Berghahn Books.
Chicago (17e ed.) Bronvermelding
ebrary, Inc, Douglas A. Vakoch, en Albert A. Harrison. Civilizations Beyond Earth: Extraterrestrial Life and Society. New York: Berghahn Books, 2011.
MLA (9e ed.) Bronvermelding
ebrary, Inc, et al. Civilizations Beyond Earth: Extraterrestrial Life and Society. Berghahn Books, 2011.
Let op: Deze citaties zijn niet altijd 100% accuraat.