Checkland, S. (1983). British public policy 1776 - 1939: An economic, social and political perspective. London: Cambridge University Press.
Παραπομπή Chicago StyleCheckland, Sydney. British Public Policy 1776 - 1939: An Economic, Social and Political Perspective. London: Cambridge University Press, 1983.
Παραπομπή MLACheckland, Sydney. British Public Policy 1776 - 1939: An Economic, Social and Political Perspective. London: Cambridge University Press, 1983.
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