APA (7th ed.) Citation

Singer, I. M., & Thorpe, J. A. (1976). Lecture notes on elementary topology and geometry. Springer.

Chicago Style (17th ed.) Citation

Singer, I. M., and John A. Thorpe. Lecture Notes on Elementary Topology and Geometry. New York ; Barcelona: Springer, 1976.

MLA (9th ed.) Citation

Singer, I. M., and John A. Thorpe. Lecture Notes on Elementary Topology and Geometry. Springer, 1976.