Siegel, W. (1988). Introduction to string field theory. World Scientific.
Cita Chicago (17th ed.)Siegel, Warren. Introduction to String Field Theory. Singapur: World Scientific, 1988.
Cita MLA (9th ed.)Siegel, Warren. Introduction to String Field Theory. World Scientific, 1988.
Atenció: Aquestes cites poden no estar 100% correctes.