APA (7th ed.) Citation

238212 Messer, R., & Straffin, P. D. (2006). Topology now! Washington : The Mathematical Association of America.

Chicago Style (17th ed.) Citation

238212 Messer, Robert, and Philip D. Straffin. Topology Now! Washington : The Mathematical Association of America, 2006.

MLA (9th ed.) Citation

238212 Messer, Robert, and Philip D. Straffin. Topology Now! Washington : The Mathematical Association of America, 2006.

Warning: These citations may not always be 100% accurate.