MLA

Erzeel, Raf, and Nadine Van den Eynden Morpeth. Sounds Perfect! : a Shortcut to British English Pronunciation. Kalmthout: Pelckmans Pro, 2017.

APA

Erzeel, R., & Van den Eynden Morpeth, N. (2017). Sounds perfect! : a shortcut to British English pronunciation. Kalmthout: Pelckmans Pro.

Chicago

Erzeel, Raf, and Nadine Van den Eynden Morpeth. Sounds Perfect!: A Shortcut to British English Pronunciation. Kalmthout: Pelckmans Pro, 2017.