Dyfyniad APA
Gartside, L. (1986). Modern business correspondence: A comprehensive guide to business writing and related office services (4th ed.). Macdonald and Evans.
Dyfyniad Arddull Chicago
Gartside, L. Modern Business Correspondence: A Comprehensive Guide to Business Writing and Related Office Services. 4th ed. London: Macdonald and Evans, 1986.
Dyfyniad MLA
Gartside, L. Modern Business Correspondence: A Comprehensive Guide to Business Writing and Related Office Services. 4th ed. Macdonald and Evans, 1986.
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