Cita APA (7a ed.)

Barry, M. (2011). Steps to academic writing (1ra. ed.). Cambridge University.

Cita Chicago Style (17a ed.)

Barry, Marian. Steps to Academic Writing. 1ra. ed. Cambridge: Cambridge University, 2011.

Cita MLA (8a ed.)

Barry, Marian. Steps to Academic Writing. 1ra. ed. Cambridge University, 2011.