Gartside, L. (1977). English for business studies: a practical: Course for use in secondary schools and colleges. Macdonald.
Chicago-viite (17. p.)Gartside, L. English for Business Studies: A Practical: Course for Use in Secondary Schools and Colleges. Estover: Macdonald, 1977.
MLA-viite (9. p.)Gartside, L. English for Business Studies: A Practical: Course for Use in Secondary Schools and Colleges. Macdonald, 1977.
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