Queen, E. (2014). The origin of evil. London: Orion Publishing Group.
शिकागो स्टाइल उद्धरणQueen, Ellery. The Origin of Evil. London: Orion Publishing Group, 2014.
एमएलए उद्धरणQueen, Ellery. The Origin of Evil. London: Orion Publishing Group, 2014.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.