Gaya APA

Hamp-Lyons, L., Heasley, B. (2008). Study Writing: A Course In Writing Skills For Academic Purposes . United Kigom: Cambridge University Press.

Gaya MLA

Hamp-Lyons, LIz., Heasley, Ben. "Study Writing: A Course In Writing Skills For Academic Purposes". United Kigom: Cambridge University Press, 2008. Text.