APA (7th ed.) Citation

Palmer, F. R. (1990). Modality and the English modals. Longman.

Chicago Style (17th ed.) Citation

Palmer, Frank Robert. Modality and the English Modals. London: Longman, 1990.

MLA (9th ed.) Citation

Palmer, Frank Robert. Modality and the English Modals. Longman, 1990.

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