Cita APA (7a ed.)

HamLyons, L., & Heasley, B. (2006). Study writing: A course in writing skills for academic purposes (2a. ed.). Cambridge University.

Cita Chicago Style (17a ed.)

HamLyons, Liz, y Ben Heasley. Study Writing: A Course in Writing Skills for Academic Purposes. 2a. ed. Cambridge: Cambridge University, 2006.

Cita MLA (8a ed.)

HamLyons, Liz, y Ben Heasley. Study Writing: A Course in Writing Skills for Academic Purposes. 2a. ed. Cambridge University, 2006.