Annual report 1987 of the librarian of congress
Library of Conggress 1988, 1988
 Buku Teks
Annual report 1985 of the Librarian of Congress
Library of Congress , 1986
 Buku Teks
Annual report 1986 of the Librarian of Congress
Library of Conggress , 1987
 Buku Teks
Annual report of the Librarian of Congress 1995
Library of Congress
Library of Congress , 1996
 Buku Teks
Annual report of the librarian of congress 1990
Library of Congress; edited by James W. Mc. Chung
Library of Congress, 1991
 Buku Teks
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