Cita APA (7a ed.)

Herz, E., & Bessling, I. (1940). National service and contracts of employment. International Labour Organization.

Cita Chicago Style (17a ed.)

Herz, E., y I. Bessling. National Service and Contracts of Employment. International Labour Organization, 1940.

Cita MLA (9a ed.)

Herz, E., y I. Bessling. National Service and Contracts of Employment. International Labour Organization, 1940.