एपीए उद्धरण

Hurka, T., & Thomas Hurka. Virtue, vice, and value. Oxford,New York: Oxford University Press.

शिकागो स्टाइल उद्धरण

Hurka, Thomas, और Thomas Hurka. Virtue, Vice, and Value. Oxford,New York: Oxford University Press.

एमएलए उद्धरण

Hurka, Thomas, और Thomas Hurka. Virtue, Vice, and Value. Oxford,New York: Oxford University Press.