APA
Green M. B., Schwarz J. H. & Witten E. (1987). Superstring theory: introduction. New York, N.Y: Cambridge University Press.
Chicago
Green M B, Schwarz J H and Witten E. 1987. Superstring theory: introduction. New York, N.Y: Cambridge University Press.
Harvard
Green M. B., Schwarz J. H. and Witten E. (1987). Superstring theory: introduction. New York, N.Y: Cambridge University Press.
MLA
Green M B, Schwarz J H and Witten E. Superstring theory: introduction. New York, N.Y: Cambridge University Press. 1987.