APA (7th ed.) Citation

Dudley, E. (2016). Working with mixed-ability groups. Modern English Teacher, 25(1), 59.

Chicago Style (17th ed.) Citation

Dudley, Edmund. "Working with Mixed-ability Groups." Modern English Teacher 25, no. 1 (2016): 59.

MLA (9th ed.) Citation

Dudley, Edmund. "Working with Mixed-ability Groups." Modern English Teacher, vol. 25, no. 1, 2016, p. 59.