Gaya APA

Stahl, S., Stenson, C. (2013). Introduction to topology and geometry (2nd ed.). Hoboken, New Jersey: John Wiley & Sons.

Gaya MLA

Stahl, Saul., Stenson, Catherine. "Introduction to topology and geometry". 2nd ed. Hoboken, New Jersey: John Wiley & Sons, 2013. Text.