Cita APA

Fries, C. (1967). Teaching and learning English as a foreign language. [s.l.]: Michigan University.

Citación estilo Chicago

Fries, Charles. Teaching and Learning English As a Foreign Language. [s.l.]: Michigan University, 1967.

Cita MLA

Fries, Charles. Teaching and Learning English As a Foreign Language. [s.l.]: Michigan University, 1967.

Precaución: Estas citas no son 100% exactas.