APA (7th ed.) Citation

Mortimer, C. (1980). Clusters: A pronunciation practice book (Reprinted.). Cambridge Univ. Press.

Chicago Style (17th ed.) Citation

Mortimer, Colin. Clusters: A Pronunciation Practice Book. Reprinted. Cambridge [u.a.]: Cambridge Univ. Press, 1980.

MLA (9th ed.) Citation

Mortimer, Colin. Clusters: A Pronunciation Practice Book. Reprinted. Cambridge Univ. Press, 1980.