Citazione Stile APA (7a Edizione)

Knowles, G. (1987). Patterns of spoken english : an introduc-: Tion to english phonetics. Longman.

Citazione stile Chigago Style (17a edizione)

Knowles, Gerald. Patterns of Spoken English : An Introduc-: Tion to English Phonetics. London: Longman, 1987.

Citatione MLA (9a ed.)

Knowles, Gerald. Patterns of Spoken English : An Introduc-: Tion to English Phonetics. Longman, 1987.