Cita APA (7a ed.)

Workbook for head writing and news editing (3rd. ed.). s. n.].

Cita Chicago Style (17a ed.)

Workbook for Head Writing and News Editing. 3rd. ed. [s. I: s. n.].

Cita MLA (9a ed.)

Workbook for Head Writing and News Editing. 3rd. ed. s. n.].