Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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