Beveridge, W. H. B., & Wells, A. F. (1949). The evidence for voluntary action, being memoranda by organisations and individuals, and other material relevant to voluntary action. George Allen and Unwin.
Lua i Stíl Chicago (17ú heag.)Beveridge, William Henry Beveridge, agus Alan Frank Wells. The Evidence for Voluntary Action, Being Memoranda by Organisations and Individuals, and Other Material Relevant to Voluntary Action. London: George Allen and Unwin, 1949.
Lua MLA (8ú heag.)Beveridge, William Henry Beveridge, agus Alan Frank Wells. The Evidence for Voluntary Action, Being Memoranda by Organisations and Individuals, and Other Material Relevant to Voluntary Action. George Allen and Unwin, 1949.
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