Cita APA (7a ed.)

International Labour Office. (1976). Safe construction and operation of tractors. International Labour Office.

Cita Chicago Style (17a ed.)

International Labour Office. Safe Construction and Operation of Tractors. Geneva: International Labour Office, 1976.

Cita MLA (8a ed.)

International Labour Office. Safe Construction and Operation of Tractors. International Labour Office, 1976.