Annual report 1985 of the Librarian of Congress
Library of Congress , 1986
 Buku Teks SO
Annual report 1986 of the Librarian of Congress
Library of Conggress, 1987
 Buku Teks SO
Annual report of the librarian of congress 1990
Library of Congress; edited by James W. Mc. Chung
Library of Congress, 1991
 Buku Teks SO
Annual report of the Librarian of Congress 1995
Library of Congress
Library of Congress , 1996
 Buku Teks SO
Annual report of the Librarian of Congress: for the fiscal year ending 30 September 1992
Library of Congress
Library of Congress , 1994
 Buku Teks SO