Cita APA

Billows, F. L. (1961). Techniques of language teaching. Longmans.

Chicago Edition Citation

Billows, F. L. Techniques of Language Teaching. Longmans, 1961.

Cita MLA

Billows, F. L. Techniques of Language Teaching. Longmans, 1961.

Atenció: Aquestes cites poden no estar 100% correctes.