Culicover, P. W. (1997). Principles and parameters: An introduction to syntactic theory. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Culicover, Peter W. Principles and Parameters: An Introduction to Syntactic Theory. Oxford, [England]: Oxford University Press, 1997.
Lua MLA (9ú heag.)Culicover, Peter W. Principles and Parameters: An Introduction to Syntactic Theory. Oxford University Press, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.