Swan, M., Walter, C. The New Cambridge: English Course 4. Cambridge: Cambridge University Press, 1998, 2001 133 p.: с цв. ил. 0-521-37640-8.
Swan, M., Walter, C. The New Cambridge: English Course 4. Cambridge: Cambridge University Press, 1998, 2001 133 p.: с цв. ил. 0-521-37640-8.
Swan, M., Walter, C. (1998, 2001) The New Cambridge: English Course 4, Cambridge: Cambridge University Press 133 p.: с цв. ил. 0-521-37640-8.
Swan, M., & Walter, C. (1998, 2001). The New Cambridge: English Course 4. Student: Upper - Intermediate. Cambridge: Cambridge University Press, 133 p.: с цв. ил.
Swan M, Walter C. The New Cambridge: English Course 4: Student: Upper - Intermediate. Cambridge: Cambridge University Press; 1998, 2001. p. 133 p.: с цв. ил. ISBN: 0-521-37640-8.
