Cita APA

Frankel, I., & Irene Frankel. (2008). Center stage 1: Grammar to communicate. White Plains, NY: Pearson Education.

Citación estilo Chicago

Frankel, Irene, y Irene Frankel. Center Stage 1: Grammar to Communicate. White Plains, NY: Pearson Education, 2008.

Cita MLA

Frankel, Irene, y Irene Frankel. Center Stage 1: Grammar to Communicate. White Plains, NY: Pearson Education, 2008.

Precaución: Estas citas no son 100% exactas.