Adams, J., & Wells, S. W. (1950). Teach yourself German: A book of self-instruction in German (13th imp.). The English Universities Press.
Cita Chicago Style (17a ed.)Adams, John, y Sydney W. Wells. Teach Yourself German: A Book of Self-instruction in German. 13th imp. London: The English Universities Press, 1950.
Cita MLA (9a ed.)Adams, John, y Sydney W. Wells. Teach Yourself German: A Book of Self-instruction in German. 13th imp. The English Universities Press, 1950.
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