Cita APA (7a ed.)

Ellis, R. (1985). Understaning second lannguage acquisition. Univ. pr..

Cita Chicago Style (17a ed.)

Ellis, Rod. Understaning Second Lannguage Acquisition. Oxfod: Univ. pr., 1985.

Cita MLA (9a ed.)

Ellis, Rod. Understaning Second Lannguage Acquisition. Univ. pr., 1985.