Wightman, W. P. D. (1950). The Growth of scientific ideas. Oliver & Boyd.
Lua i Stíl Chicago (17ú heag.)Wightman, W. P. D. The Growth of Scientific Ideas. Edinburgh: Oliver & Boyd, 1950.
Lua MLA (9ú heag.)Wightman, W. P. D. The Growth of Scientific Ideas. Oliver & Boyd, 1950.
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