Cita APA (7a ed.)

Jespersen, O. (1964). Language, its nature, development and origin. George Allen & Unwin.

Cita Chicago Style (17a ed.)

Jespersen, Otto. Language, Its Nature, Development and Origin. London: George Allen & Unwin, 1964.

Cita MLA (9a ed.)

Jespersen, Otto. Language, Its Nature, Development and Origin. George Allen & Unwin, 1964.