एपीए उद्धरण

Siegel, W. (1988). Introduction to string field theory. World Scientific.

शिकागो स्टाइल उद्धरण

Siegel, Warren. Introduction to String Field Theory. Singapore: World Scientific, 1988.

एमएलए उद्धरण

Siegel, Warren. Introduction to String Field Theory. World Scientific, 1988.