Cita APA (7th ed.)

ebrary, Inc, & Schneider, E. W. (1996). Focus on the USA. J. Benjamins.

Cita Chicago (17th ed.)

ebrary, Inc, i Edgar W. Schneider. Focus on the USA. Amsterdam ; Philadelphia: J. Benjamins, 1996.

Cita MLA (9th ed.)

ebrary, Inc, i Edgar W. Schneider. Focus on the USA. J. Benjamins, 1996.

Atenció: Aquestes cites poden no estar 100% correctes.