APA (7th ed.) Citation

Viro, O. ?. (2008). Elementary topology: Problem textbook. American Mathematical Society.

Chicago Style (17th ed.) Citation

Viro, O. ?I?A. Elementary Topology: Problem Textbook. Providence, R.I: American Mathematical Society, 2008.

MLA (9th ed.) Citation

Viro, O. ?I?A. Elementary Topology: Problem Textbook. American Mathematical Society, 2008.