Cita APA (7th ed.)

Singer, I. M., & Thorpe, J. A. (1967). Lecture notes on elementary topology and geometry. Scott, Foresman.

Cita Chicago (17th ed.)

Singer, Isadore Manuel, i John A. Thorpe. Lecture Notes on Elementary Topology and Geometry. Glenview: Scott, Foresman, 1967.

Cita MLA (9th ed.)

Singer, Isadore Manuel, i John A. Thorpe. Lecture Notes on Elementary Topology and Geometry. Scott, Foresman, 1967.