APA (7th ed.) Citation
Green, M. B., Schwarz, J. H., & Witten, E. (1987). Superstring theory: Introduction. Cambridge University Press.
Chicago Style (17th ed.) Citation
Green, M. B., J. H. Schwarz, and E. Witten. Superstring Theory: Introduction. New York, N.Y.: Cambridge University Press, 1987.
MLA (9th ed.) Citation
Green, M. B., et al. Superstring Theory: Introduction. Cambridge University Press, 1987.
Warning: These citations may not always be 100% accurate.