Hartley, B., & Viney, P. Streamline english. Destinations (8a ed.).
Cita Chicago (17th ed.)Hartley, Bernard, i Peter Viney. Streamline English. Destinations. 8a ed.
Cita MLA (8th ed.)Hartley, Bernard, i Peter Viney. Streamline English. Destinations. 8a ed.
Atenció: Aquestes cites poden no estar 100% correctes.