United States. Congress. Senate. Committee on Printing, ProQuest (Firm), & Library of Congress. (1920). Publications issued by the Library of Congress. Letter from the Librarian of Congress, transmitting, pursuant to law, a statement showing the number of publications issued during the fiscal year ended June 30, 1920. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Congress. Senate. Committee on Printing, ProQuest (Firm), and Library of Congress. Publications Issued by the Library of Congress. Letter from the Librarian of Congress, Transmitting, Pursuant to Law, a Statement Showing the Number of Publications Issued During the Fiscal Year Ended June 30, 1920. Washington: [publisher not identified], 1920.
MLA (9th ed.) CitationUnited States. Congress. Senate. Committee on Printing, et al. Publications Issued by the Library of Congress. Letter from the Librarian of Congress, Transmitting, Pursuant to Law, a Statement Showing the Number of Publications Issued During the Fiscal Year Ended June 30, 1920. [publisher not identified], 1920.