Morrill, John. "Devereux, Robert, third earl of Essex". Oxford Dictionary of National Biography (online ed.). Oxford University Press. doi:10.1093/ref:odnb/7566. (Subscription or UK public library membership required.) cite ODNB | id=7566|first=John|last=Morrill|title=Devereux, Robert, third earl of Essex
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COLBRAN, John. Colbran's New Guide for Tunbridge Wells. Cornhill, London: A H Bailey & Co, 1840. Dostupné v archivu pořízeném dne 2011-09-30. S. 332.Je zde použita šablona {{Cite book}} označená jako k „pouze dočasnému použití“.
