Sutton, P. (1992). Let's talk German (3rd ed.). Hodder and Stoughton.
Cita Chicago (17th ed.)Sutton, Peter. Let's Talk German. 3rd ed. London: Hodder and Stoughton, 1992.
Cita MLA (9th ed.)Sutton, Peter. Let's Talk German. 3rd ed. Hodder and Stoughton, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.