APA (7th ed.) Citation

Villegas, J. L., Castro, E., & Gutiérrez, J. (2012). Representations in problem solving: A case study with optimization problems. Universidad de Almería.

Chicago Style (17th ed.) Citation

Villegas, José L., Enrique Castro, and José Gutiérrez. Representations in Problem Solving: A Case Study with Optimization Problems. Universidad de Almería, 2012.

MLA (8th ed.) Citation

Villegas, José L., et al. Representations in Problem Solving: A Case Study with Optimization Problems. Universidad de Almería, 2012.