APA (7th ed.) Zitazioa

SHEET, H. (1899). The practical study of languages: A guide for teachers and Learners. O.U.P..

Chicago Style (17th ed.) Zitazioa

SHEET, Henry. The Practical Study of Languages: A Guide for Teachers and Learners. London: O.U.P., 1899.

MLA (9th ed.) Zitazioa

SHEET, Henry. The Practical Study of Languages: A Guide for Teachers and Learners. O.U.P., 1899.