Cita APA (7a ed.)
Pérez González, C. P., Orellana Villeda, I. M., Figueroa Urbano, V. E., Ortiz Rivera, A. B. G., Hernández Rivas, R. A., & Garay Salinas, R. Main factors that determine students´ level of proficiency in English Intermediate I of the Foreign Languages Department of the University of El Salvador during the semester II-2011.
Cita Chicago Style (17a ed.)
Pérez González, Claudia Patricia, Ingrid Mariela Orellana Villeda, Vicky Evangelina Figueroa Urbano, Ana Blanca Guadalupe Ortiz Rivera, René Arturo Hernández Rivas, y Ricardo Garay Salinas. Main Factors That Determine Students´ Level of Proficiency in English Intermediate I of the Foreign Languages Department of the University of El Salvador During the Semester II-2011.
Cita MLA (9a ed.)
Pérez González, Claudia Patricia, et al. Main Factors That Determine Students´ Level of Proficiency in English Intermediate I of the Foreign Languages Department of the University of El Salvador During the Semester II-2011.
Precaución: Estas citas no son 100% exactas.