Swinscow, T. (1981). Statistics at square one. British Medical Association.
Lua i Stíl Chicago (17ú heag.)Swinscow, T.D.V. Statistics at Square One. London: British Medical Association, 1981.
Lua MLA (8ú heag.)Swinscow, T.D.V. Statistics at Square One. British Medical Association, 1981.
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