Sharwood Smith, M. (1994). Second language learning: Theorical foundations. Longman.
Citazione stile Chigago Style (17a edizione)Sharwood Smith, Michael. Second Language Learning: Theorical Foundations. Nueva York: Longman, 1994.
Citatione MLA (9a ed.)Sharwood Smith, Michael. Second Language Learning: Theorical Foundations. Longman, 1994.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.