Library of Congress. (1944). Catalog of copyright entries, new series, part 4, Works of art, reproductions of a work of art, drawings or plastic works of a scientific or technical character, photographs, prints and pictorial illustrations, including prints and labels used for articles of merchandise, including list of renewals, volume 39, no. 7. [s.n.].
Chicago Style (17th ed.) CitationLibrary of Congress. Catalog of Copyright Entries, New Series, Part 4, Works of Art, Reproductions of a Work of Art, Drawings or Plastic Works of a Scientific or Technical Character, Photographs, Prints and Pictorial Illustrations, Including Prints and Labels Used for Articles of Merchandise, Including List of Renewals, Volume 39, No. 7. [Washington]: [s.n.], 1944.
MLA (9th ed.) CitationLibrary of Congress. Catalog of Copyright Entries, New Series, Part 4, Works of Art, Reproductions of a Work of Art, Drawings or Plastic Works of a Scientific or Technical Character, Photographs, Prints and Pictorial Illustrations, Including Prints and Labels Used for Articles of Merchandise, Including List of Renewals, Volume 39, No. 7. [s.n.], 1944.