Cita APA (7th ed.)

Crain, S., & Thornton, R. (1998). Investigations in universal grammar: A guide to experiments on the acquisition of syntax and semantics. MIT.

Cita Chicago (17th ed.)

Crain, Stephen, i Rosalind Thornton. Investigations in Universal Grammar: A Guide to Experiments on the Acquisition of Syntax and Semantics. Cambridge: MIT, 1998.

Cita MLA (9th ed.)

Crain, Stephen, i Rosalind Thornton. Investigations in Universal Grammar: A Guide to Experiments on the Acquisition of Syntax and Semantics. MIT, 1998.