1
Brown, H. Douglas.
| Prentice-Hall |
1900
보존자료
2
Brumfit, Christopher.
| Oxford University Press |
1979
보존자료
5
Brumfit, Christopher.
| Oxford University Press |
1986
보존자료
7
Spolsky, Bernard
| Oxford University Press, |
1989
대출가능
9
Godfrey, J.Terry.
| Prentice-Hall |
1989
제적자료
10
Widdowson, H. G.
| Oxford University Press |
1990
보존자료