Cita APA (7th ed.)

Lenneberg, E. H. (1964). New directions in the study of language. M. I. T. Press.

Cita Chicago (17th ed.)

Lenneberg, Eric H. New Directions in the Study of Language. Cambridge, Mass: M. I. T. Press, 1964.

Cita MLA (9th ed.)

Lenneberg, Eric H. New Directions in the Study of Language. M. I. T. Press, 1964.