APA-Zitierstil (7. Ausg.)

Ek, J. A. v. (1985). The threshold level: For modern language learning in schools (4. impr.). Longman.

Chicago-Zitierstil (17. Ausg.)

Ek, Jan Ate van. The Threshold Level: For Modern Language Learning in Schools. 4. impr. London: Longman, 1985.

MLA-Zitierstil (9. Ausg.)

Ek, Jan Ate van. The Threshold Level: For Modern Language Learning in Schools. 4. impr. Longman, 1985.