Churchill, W. A. (1985). Watermarks in Paper in Holland, England, France, etc. in the XVII and XVIII Centuries and their Interconnection (Authorized Reprint of the edition Amsterdam, 1935.). B. de Graaf.
Citace podle Chicago (17th ed.)Churchill, W. A. Watermarks in Paper in Holland, England, France, Etc. in the XVII and XVIII Centuries and Their Interconnection. Authorized Reprint of the edition Amsterdam, 1935. Nieuwkoop: B. de Graaf, 1985.
Citace podle MLA (8th ed.)Churchill, W. A. Watermarks in Paper in Holland, England, France, Etc. in the XVII and XVIII Centuries and Their Interconnection. Authorized Reprint of the edition Amsterdam, 1935. B. de Graaf, 1985.
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