Hamp-Lyons, L., & Heasley, B. (2006). Study writing: A course in writing skills for academic purposes (2nd ed.). Cambridge University Press.
Παραπομπή σε μορφή Chicago (17η εκδ.)Hamp-Lyons, Liz, και Ben Heasley. Study Writing: A Course in Writing Skills for Academic Purposes. 2nd ed. Cambridge ; New York: Cambridge University Press, 2006.
Παραπομπή σε μορφή MLA (8th εκδ.)Hamp-Lyons, Liz, και Ben Heasley. Study Writing: A Course in Writing Skills for Academic Purposes. 2nd ed. Cambridge University Press, 2006.
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