Cita APA (7a ed.)

Anderson, P. (1989). First certificate writing skills. Thomas Nelson and Sons.

Cita Chicago Style (17a ed.)

Anderson, Peter. First Certificate Writing Skills. Walton-on-Thames [etc.]: Thomas Nelson and Sons, 1989.

Cita MLA (9a ed.)

Anderson, Peter. First Certificate Writing Skills. Thomas Nelson and Sons, 1989.