Handbook of manuscripts in the Library of Congress.
APA Citation
Library of Congress. Manuscript Division., Hunt, G., Mitchell, E. Burns., Fitzpatrick, J. Clement., Turner, V. Arsdale Brown. (1918). Handbook of manuscripts in the Library of Congress. Washington: Govt. print. off..
MLA Citation
Turner, V. Arsdale Brown, et al.. Handbook of Manuscripts In the Library of Congress. Washington: Govt. print. off., 1918.
Warning: These citations may not always be complete (especially for serials).