McCallum, E. D. (1934). The problem of the depressed areas in Great Britain. International Labour Organization.
Citazione stile Chigago Style (17a edizione)McCallum, E. D. The Problem of the Depressed Areas in Great Britain. International Labour Organization, 1934.
Citatione MLA (9a ed.)McCallum, E. D. The Problem of the Depressed Areas in Great Britain. International Labour Organization, 1934.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.