Lua APA (7ú heag.)

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

Lua i Stíl Chicago (17ú heag.)

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

Lua MLA (9ú heag.)

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

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