Cita APA (7a ed.)

Quarles, C. L. (1993). Staying safe at school. Corwin.

Cita Chicago Style (17a ed.)

Quarles, Chester L. Staying Safe at School. Thousand Oaks, Calif. [u.a.]: Corwin, 1993.

Cita MLA (9a ed.)

Quarles, Chester L. Staying Safe at School. Corwin, 1993.