Citazione Stile APA (7a Edizione)

Grenfell, M., & Harris, V. (1999). Modern languages and learning strategies: In theory and practice. Routledge.

Citazione stile Chigago Style (17a edizione)

Grenfell, Michael, e Vee Harris. Modern Languages and Learning Strategies: In Theory and Practice. London ; New York: Routledge, 1999.

Citatione MLA (9a ed.)

Grenfell, Michael, e Vee Harris. Modern Languages and Learning Strategies: In Theory and Practice. Routledge, 1999.