APA (7th ed.) Citation

Watson, O. C. (1968). Longmans English larousse. Longmans.

Chicago Style (17th ed.) Citation

Watson, O. C. Longmans English Larousse. Harlow: Longmans, 1968.

MLA (8th ed.) Citation

Watson, O. C. Longmans English Larousse. Longmans, 1968.