APA
O'Connor J. D., . (1967). Better English pronunciation. Cambridge University press, London: .
Chicago
O'Connor J D, . 1967. Better English pronunciation. Cambridge University press, London: .
Harvard
O'Connor J. D., . (1967). Better English pronunciation. Cambridge University press, London: .
MLA
O'Connor J D, . Better English pronunciation. Cambridge University press, London: . 1967.