APA (7th ed.) Citation

O'Connor J. D. and Arnold G. F. (1961). Intonation of colloquial English: A practical handbook. Longman.

Chicago Style (17th ed.) Citation

O'Connor J. D. and Arnold G. F. Intonation of Colloquial English: A Practical Handbook. London: Longman, 1961.

MLA (8th ed.) Citation

O'Connor J. D. and Arnold G. F. Intonation of Colloquial English: A Practical Handbook. Longman, 1961.

Warning: These citations may not always be 100% accurate.