APA (7th ed.) Citation

Lang, S. (1976). Introduction to modular forms. Springer-Verlag.

Chicago Style (17th ed.) Citation

Lang, Serge. Introduction to Modular Forms. Berlin ; New York: Springer-Verlag, 1976.

MLA (9th ed.) Citation

Lang, Serge. Introduction to Modular Forms. Springer-Verlag, 1976.