APA-viite (7. p.)

Barros Siguenza, N., & Cárdenas, M. A. How to improve the pronunciation of the english language in students from 10 to 12 in International high school.

Chicago-viite (17. p.)

Barros Siguenza, Nancy, ja María Alexandra Cárdenas. How to Improve the Pronunciation of the English Language in Students from 10 to 12 in International High School.

MLA-viite (8. p.)

Barros Siguenza, Nancy, ja María Alexandra Cárdenas. How to Improve the Pronunciation of the English Language in Students from 10 to 12 in International High School.

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