International Labor Office. (1973). Mechanisation and employment in agriculture: Case studies from four continents. [s.n.
Cita Chicago (17th ed.)International Labor Office. Mechanisation and Employment in Agriculture: Case Studies from Four Continents. Geneva: [s.n, 1973.
Cita MLA (9th ed.)International Labor Office. Mechanisation and Employment in Agriculture: Case Studies from Four Continents. [s.n, 1973.
Atenció: Aquestes cites poden no estar 100% correctes.