APA-viite (7. p.)

Kratzer, A. (2012). Modals and conditionals. Oxford University Press.

Chicago-viite (17. p.)

Kratzer, Angelika. Modals and Conditionals. Great Clarendon Street, Oxford: Oxford University Press, 2012.

MLA-viite (9. p.)

Kratzer, Angelika. Modals and Conditionals. Oxford University Press, 2012.