Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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