Gartside, L. (1976). Modern business correspondence : a practical: Course for use in schools, and by all who would write better business letters. The English language book society.
Chicago-viite (17. p.)Gartside, L. Modern Business Correspondence : A Practical: Course for Use in Schools, and by All Who Would Write Better Business Letters. London: The English language book society, 1976.
MLA-viite (9. p.)Gartside, L. Modern Business Correspondence : A Practical: Course for Use in Schools, and by All Who Would Write Better Business Letters. The English language book society, 1976.
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