Gaya APA

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

Gaya MLA

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