APA (7th ed.) Citation

U. S. Library of Congress. (1910). Information for readers in the main reading room. U. S. Govt. Print. Off.

Chicago Style (17th ed.) Citation

U. S. Library of Congress. Information for Readers in the Main Reading Room. Washington: U. S. Govt. Print. Off, 1910.

MLA (9th ed.) Citation

U. S. Library of Congress. Information for Readers in the Main Reading Room. U. S. Govt. Print. Off, 1910.