Cita APA (7th ed.)

Sharwood Smith, M. (1994). Second language learning: Theoretical foundations. Longman.

Cita Chicago (17th ed.)

Sharwood Smith, Michael. Second Language Learning: Theoretical Foundations. London: Longman, 1994.

Cita MLA (9th ed.)

Sharwood Smith, Michael. Second Language Learning: Theoretical Foundations. Longman, 1994.