APA (7th ed.) Citation

Adrian-Vallance, D. A. (1990). Practise your comparatives. Longman.

Chicago Style (17th ed.) Citation

Adrian-Vallance, D' Arcy. Practise Your Comparatives. UK: Longman, 1990.

MLA (9th ed.) Citation

Adrian-Vallance, D' Arcy. Practise Your Comparatives. Longman, 1990.

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