"Materiales bibliotecarios Microfilmación." . . "Microphotography Specifications United States." . . "Publicaciones periódicas Preservación." . . "Microphotography." . . "Microfilms." . . "Newspapers on microfilm Standards." . . "Mikrofilmy stosowanie bibliotekarstwo." . . "United States." . . "Newspapers on microfilm." . . "Microfotografía Especificaciones Estados Unidos." . . "Library of Congress. Photoduplication Service." . . "Newspapers on microfilm Standards United States." . . "Zeitung." . . "Periódicos en microfilm Normas Estados Unidos." . . "United States, Library of Congress." . . "Washington (D.C.)" . . "Diaris en microfilm." . . "Mikroverfilmung." . . "Library of Congress" . . "Library of Congress." . . . "Specifications for the Microfilming of Newspapers in the Library of Congress" . . . . . . . . . "Specifications For the Microfilming of Newspapers in the Library of Congress" . . . . . "Specifications for Library of Congress microfilming" . . . . . . . . . . . . . . . . . . . . "Specifications for the microfilming of newspapers in the Library of Congress" . "Specifications for the microfilming of newspapers in the Library of Congress"@en . . . . . . . . . . . . . . . . . . . . . "Specifications" . . "Specifications"@en . . . . . . .