Cita APA

Brumfit, C. (1984). Problems and principles in english teaching ([1st. ed., 3rd. reimp.].). Oxford [etc.]: Pergamon press.

Citación estilo Chicago

Brumfit, Christopher. Problems and Principles in English Teaching. [1st. ed., 3rd. reimp.]. Oxford [etc.]: Pergamon press, 1984.

Cita MLA

Brumfit, Christopher. Problems and Principles in English Teaching. [1st. ed., 3rd. reimp.]. Oxford [etc.]: Pergamon press, 1984.