Cita APA (7a ed.)

Crain, S., & Lillo-Martin, D. C. (1999). An introduction to linguistic theory and language acquisition. Blackwell.

Cita Chicago Style (17a ed.)

Crain, Stephen, y Diane Carolyn Lillo-Martin. An Introduction to Linguistic Theory and Language Acquisition. Malden (Massachusetts) [etc.]: Blackwell, 1999.

Cita MLA (9a ed.)

Crain, Stephen, y Diane Carolyn Lillo-Martin. An Introduction to Linguistic Theory and Language Acquisition. Blackwell, 1999.