एपीए उद्धरण

Polchinski, J. G. (2005). String theory. New York: Cambridge University Press.

शिकागो स्टाइल उद्धरण

Polchinski, Joseph Gerard. String Theory. New York: Cambridge University Press, 2005.

एमएलए उद्धरण

Polchinski, Joseph Gerard. String Theory. New York: Cambridge University Press, 2005.