Villegas, J. L., Castro, E., & Gutiérrez, J. (2012). Representations in problem solving: A case study with optimization problems. Universidad de Almería.
芝加哥风格引文Villegas, José L., Enrique Castro, 与 José Gutiérrez. Representations in Problem Solving: A Case Study with Optimization Problems. Universidad de Almería, 2012.
MLA引文Villegas, José L., et al. Representations in Problem Solving: A Case Study with Optimization Problems. Universidad de Almería, 2012.
警告：这些引文格式不一定是100％准确.