APA (7th ed.) Citation

Santos, L., Coutinho-Rodrigues, J., & Current, J. R. (2009). An improved heuristic for the capacitated arc routing problem.

Chicago Style (17th ed.) Citation

Santos, Luís, João Coutinho-Rodrigues, and John R. Current. An Improved Heuristic for the Capacitated Arc Routing Problem. 2009.

MLA (8th ed.) Citation

Santos, Luís, et al. An Improved Heuristic for the Capacitated Arc Routing Problem. 2009.