APA (7e ed.) Bronvermelding
Porpora, D. V. (1990). How holocausts happen: The United States in Central America. Temple University Press.
Chicago (17e ed.) Bronvermelding
Porpora, Douglas V. How Holocausts Happen: The United States in Central America. Philadelphia: Temple University Press, 1990.
MLA (9e ed.) Bronvermelding
Porpora, Douglas V. How Holocausts Happen: The United States in Central America. Temple University Press, 1990.
Let op: Deze citaties zijn niet altijd 100% accuraat.