APA (7th ed.) Citation

Collins, P. (2009). Modals and quasi-modals in English. Rodopi.

Chicago Style (17th ed.) Citation

Collins, Peter. Modals and Quasi-modals in English. Amsterdam ; New York, NY: Rodopi, 2009.

MLA (9th ed.) Citation

Collins, Peter. Modals and Quasi-modals in English. Rodopi, 2009.