एपीए उद्धरण

Kaku, M. (1991). Strings, conformal fields, and topology: An introduction. Springer-Verlag.

शिकागो स्टाइल उद्धरण

Kaku, Michio. Strings, Conformal Fields, and Topology: An Introduction. New York: Springer-Verlag, 1991.

एमएलए उद्धरण

Kaku, Michio. Strings, Conformal Fields, and Topology: An Introduction. Springer-Verlag, 1991.