Cita APA (7a ed.)

Robartson, D. (2001). Writing effectively. Sarupand sons.

Cita Chicago Style (17a ed.)

Robartson, D. Writing Effectively. New Delhi: Sarupand sons, 2001.

Cita MLA (9a ed.)

Robartson, D. Writing Effectively. Sarupand sons, 2001.