APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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