Eastman, M. (1926). A brief survey of coal-crisis literature. International Labour Organization.
Citazione stile Chigago Style (17a edizione)Eastman, Mack. A Brief Survey of Coal-crisis Literature. International Labour Organization, 1926.
Citatione MLA (9a ed.)Eastman, Mack. A Brief Survey of Coal-crisis Literature. International Labour Organization, 1926.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.