Cita APA (7a ed.)
Alvarado Ayala, M. G., Romero Rivera, J. E., & Salazar Mucia, P. A. (2003). An analysis of the results after five years of implementation of the new educational program for teachers of english plan mined at four universities of San Salvador 1998 - 2002. Universidad de El Salvador.
Cita Chicago Style (17a ed.)
Alvarado Ayala, María Guadalupe, José Efraín Romero Rivera, y Pedro Antonio Salazar Mucia. An Analysis of the Results After Five Years of Implementation of the New Educational Program for Teachers of English Plan Mined at Four Universities of San Salvador 1998 - 2002. San Salvador: Universidad de El Salvador, 2003.
Cita MLA (9a ed.)
Alvarado Ayala, María Guadalupe, et al. An Analysis of the Results After Five Years of Implementation of the New Educational Program for Teachers of English Plan Mined at Four Universities of San Salvador 1998 - 2002. Universidad de El Salvador, 2003.
Precaución: Estas citas no son 100% exactas.