APA-viite (7. p.)
Porpora, D. V. (1990). How holocausts happen: The United States in Central America. Temple University Press.
Chicago-viite (17. p.)
Porpora, Douglas V. How Holocausts Happen: The United States in Central America. Philadelphia: Temple University Press, 1990.
MLA-viite (9. p.)
Porpora, Douglas V. How Holocausts Happen: The United States in Central America. Temple University Press, 1990.
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