Richards, P. J. (1979). Housing and employment. International Labour Organization.
Citazione stile Chigago Style (17a edizione)Richards, P. J. Housing and Employment. International Labour Organization, 1979.
Citatione MLA (9a ed.)Richards, P. J. Housing and Employment. International Labour Organization, 1979.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.