APA (7th ed.) Citation

Ward, J. M. (1976). Practice in structure and usage: Fifty exercises. Longman.

Chicago Style (17th ed.) Citation

Ward, John Millington. Practice in Structure and Usage: Fifty Exercises. Londres: Longman, 1976.

MLA (9th ed.) Citation

Ward, John Millington. Practice in Structure and Usage: Fifty Exercises. Longman, 1976.