Cita APA (7th ed.)

International Labor Office, World Employment Programme, & Costa, E. (1977). Guidelines for the organization of special labour-intensive works programmes. International Labour Office.

Cita Chicago (17th ed.)

International Labor Office, World Employment Programme, i Emile Costa. Guidelines for the Organization of Special Labour-intensive Works Programmes. Geneva: International Labour Office, 1977.

Cita MLA (9th ed.)

International Labor Office, et al. Guidelines for the Organization of Special Labour-intensive Works Programmes. International Labour Office, 1977.