Richard Beard (French Wikipedia)

Analysis of information sources in references of the Wikipedia article "Richard Beard" in French language version.

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webarchive.org.uk

  • (en) Wood, R. D., The Calotype patent lawsuit of Talbot v. Laroche : 1854, Bromley, Kent, privately published, , 31 p. (ISBN 0-9504377-0-0, lire en ligne))