APA
Tench P., . (1981). Pronunciation skills. London: Macmillan Publishing Company.
Chicago
Tench Paul, . 1981. Pronunciation skills. London: Macmillan Publishing Company.
Harvard
Tench P., . (1981). Pronunciation skills. London: Macmillan Publishing Company.
MLA
Tench Paul, . Pronunciation skills. London: Macmillan Publishing Company. 1981.