Cita APA

Douglas Nancy. (2013). World Class: Expanding english fluency. Boston: Cengage Learning ; National Geographic Learning.

Citación estilo Chicago

Douglas Nancy. World Class: Expanding English Fluency. Boston: Cengage Learning ; National Geographic Learning, 2013.

Cita MLA

Douglas Nancy. World Class: Expanding English Fluency. Boston: Cengage Learning ; National Geographic Learning, 2013.

Precaución: Estas citas no son 100% exactas.