APA
Library of congress, Library of congress, . (2002). Annual report of the librarian of congress2001. Washington: Library of congress.
Chicago
Library of congress, Library of congress, . 2002. Annual report of the librarian of congress2001. Washington: Library of congress.
Harvard
Library of congress, Library of congress, . (2002). Annual report of the librarian of congress2001. Washington: Library of congress.
MLA
Library of congress, Library of congress, . Annual report of the librarian of congress2001. Washington: Library of congress. 2002.
