Cita APA (7a ed.)

Chappell, D., & Di Martino, V. (1998). Violence at work. International Labour Office.

Cita Chicago Style (17a ed.)

Chappell, Duncan, y Vittorio Di Martino. Violence at Work. Geneva: International Labour Office, 1998.

Cita MLA (8a ed.)

Chappell, Duncan, y Vittorio Di Martino. Violence at Work. International Labour Office, 1998.