Cita APA (7a ed.)

Chappell, D., & Di Martino, V. (1998). Violence at Work. International Labour Organization.

Cita Chicago Style (17a ed.)

Chappell, Duncan, y Vittorio Di Martino. Violence at Work. [Erscheinungsort nicht ermittelbar]: International Labour Organization, 1998.

Cita MLA (9a ed.)

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