Cita APA (7th ed.)

Lenneberg, E. H., & Lenneberg, E. (1975). Foundations of language development: A multidisciplinary approach. Academy press.

Cita Chicago (17th ed.)

Lenneberg, Eric H., i Elizabeth Lenneberg. Foundations of Language Development: A Multidisciplinary Approach. Nueva York: Academy press, 1975.

Cita MLA (9th ed.)

Lenneberg, Eric H., i Elizabeth Lenneberg. Foundations of Language Development: A Multidisciplinary Approach. Academy press, 1975.