Cita APA

Frank, C., & Rinvolucri, M. (1991). Grammar in Action Again: Awareness Activities for Language Learning. London: Prentice-Hall.

Citación estilo Chicago

Frank, Christine, y Mario Rinvolucri. Grammar in Action Again: Awareness Activities for Language Learning. London: Prentice-Hall, 1991.

Cita MLA

Frank, Christine, y Mario Rinvolucri. Grammar in Action Again: Awareness Activities for Language Learning. London: Prentice-Hall, 1991.