The annual register: a record of world events 1981
edited by H.V. Hodson
Longman, 1982
 Buku Referensi
The annual register: a record of world events 1982
edited by H.V. Hodson
Longman, 1983
 Buku Referensi
The Americana Annual 1986
edited by Jeffrey H. Hacker
Canada Grolier, 1986
 Buku Teks
Year : an annual record of current pictorial history covering every important world event / editor, Baldwin H. Ward
YEAR Incorporated, [date of publication not identified]
 Buku Teks
Annual report 1986 of the Librarian of Congress
Library of Conggress , 1987
 Buku Teks
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