Nelson, L. (1938). The agricultural labour situation in the United States. International Labour Organization.
Citazione stile Chigago Style (17a edizione)Nelson, Lowry. The Agricultural Labour Situation in the United States. International Labour Organization, 1938.
Citatione MLA (9a ed.)Nelson, Lowry. The Agricultural Labour Situation in the United States. International Labour Organization, 1938.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.