ProQuest (Firm). (1880). Henry Voelter's patent for reducing wood to paper pulp. Papers in the matter of the application of Henry Voelter for extension of reissue of letters patent for improvement for reducing wood to paper pulp. [publisher not identified].
Chicago Style (17th ed.) CitationProQuest (Firm). Henry Voelter's Patent for Reducing Wood to Paper Pulp. Papers in the Matter of the Application of Henry Voelter for Extension of Reissue of Letters Patent for Improvement for Reducing Wood to Paper Pulp. Washington: [publisher not identified], 1880.
MLA (9th ed.) CitationProQuest (Firm). Henry Voelter's Patent for Reducing Wood to Paper Pulp. Papers in the Matter of the Application of Henry Voelter for Extension of Reissue of Letters Patent for Improvement for Reducing Wood to Paper Pulp. [publisher not identified], 1880.