APA
Symposium on Global Security for the Twenty-first Century, United Nations. Department for Disarmament Affairs & Forum per i problemi della pace e della guerra. (1987). Symposium on Global Security for the Twenty-first Century. New York: United Nations.
Chicago
Symposium on Global Security for the Twenty-first Century, United Nations. Department for Disarmament Affairs and Forum per i problemi della pace e della guerra. 1987. Symposium on Global Security for the Twenty-first Century. New York: United Nations.
Harvard
Symposium on Global Security for the Twenty-first Century, United Nations. Department for Disarmament Affairs and Forum per i problemi della pace e della guerra. (1987). Symposium on Global Security for the Twenty-first Century. New York: United Nations.
MLA
Symposium on Global Security for the Twenty-first Century, United Nations. Department for Disarmament Affairs and Forum per i problemi della pace e della guerra. Symposium on Global Security for the Twenty-first Century. New York: United Nations. 1987.