APA (7th ed.) Citation

Protasova, K. D., & Provotar, T. M. (2012). Rainbow graphs and semigroups.

Chicago Style (17th ed.) Citation

Protasova, K. D., and T. M. Provotar. Rainbow Graphs and Semigroups. 2012.

MLA (8th ed.) Citation

Protasova, K. D., and T. M. Provotar. Rainbow Graphs and Semigroups. 2012.

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