Cita APA (7a ed.)

Varghakhadem, F., & Passingham, R. (1990). SPEECH AND LANGUAGE DEFECTS.

Cita Chicago Style (17a ed.)

Varghakhadem, F., y R. Passingham. SPEECH AND LANGUAGE DEFECTS. 1990.

Cita MLA (9a ed.)

Varghakhadem, F., y R. Passingham. SPEECH AND LANGUAGE DEFECTS. 1990.