Perkin, W. H. (1958). Perkin centenary London: Hundred years of synthetic dyestuffs. Pergamon Press.
Lua i Stíl Chicago (17ú heag.)Perkin, William Henry. Perkin Centenary London: Hundred Years of Synthetic Dyestuffs. London: Pergamon Press, 1958.
Lua MLA (9ú heag.)Perkin, William Henry. Perkin Centenary London: Hundred Years of Synthetic Dyestuffs. Pergamon Press, 1958.
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