APA
Lightfoot D., . (1979). Principles of Diachronic Syntax. : Cambridge University Press.
Chicago
Lightfoot David, . 1979. Principles of Diachronic Syntax. : Cambridge University Press.
Harvard
Lightfoot D., . (1979). Principles of Diachronic Syntax. : Cambridge University Press.
MLA
Lightfoot David, . Principles of Diachronic Syntax. : Cambridge University Press. 1979.
