Dyfyniad APA

HAMP-LYONS, L., & HEASLEY, B. (1990). Study writing: A Course in written english for academicand professional purposes. Cambridge University Press.

Dyfyniad Arddull Chicago

HAMP-LYONS, Liz, and Ben HEASLEY. Study Writing: A Course in Written English for Academicand Professional Purposes. New York: Cambridge University Press, 1990.

Dyfyniad MLA

HAMP-LYONS, Liz, and Ben HEASLEY. Study Writing: A Course in Written English for Academicand Professional Purposes. Cambridge University Press, 1990.

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