Dyfyniad APA
Thomson, A. J., & Martinet, . A. V. (1986). A Practical English Grammar (4th ed.). Oxford University Press.
Dyfyniad Arddull Chicago
Thomson, A. J., and A. V. Martinet. A Practical English Grammar. 4th ed. New York: Oxford University Press, 1986.
Dyfyniad MLA
Thomson, A. J., and A. V. Martinet. A Practical English Grammar. 4th ed. Oxford University Press, 1986.
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