Stahl, S., & Stenson, C. (2013). Introduction to topology and geometry (Second edition.). Wiley.
Chicago-čujuhus (17. p.)Stahl, Saul, juo Catherine Stenson. Introduction to Topology and Geometry. Second edition. Hoboken, New Jersey: Wiley, 2013.
MLA-čujuhus (9. p.)Stahl, Saul, juo Catherine Stenson. Introduction to Topology and Geometry. Second edition. Wiley, 2013.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.