Knight, R. C., & George, F. W. A. (1973). Advice to the student of French (3rd ed.). Basil Blackwell.
Cita Chicago (17th ed.)Knight, Roy Clement, i F. W. A. George. Advice to the Student of French. 3rd ed. Oxford: Basil Blackwell, 1973.
Cita MLA (8th ed.)Knight, Roy Clement, i F. W. A. George. Advice to the Student of French. 3rd ed. Basil Blackwell, 1973.
Atenció: Aquestes cites poden no estar 100% correctes.