APA
(1970). List of seminars, study groups, expert groups, symposis and workshop held under the United Nations auspices 1946-1969. Geneva: United Nations Library.
Chicago
1970. List of seminars, study groups, expert groups, symposis and workshop held under the United Nations auspices 1946-1969. Geneva: United Nations Library.
Harvard
(1970). List of seminars, study groups, expert groups, symposis and workshop held under the United Nations auspices 1946-1969. Geneva: United Nations Library.
MLA
List of seminars, study groups, expert groups, symposis and workshop held under the United Nations auspices 1946-1969. Geneva: United Nations Library. 1970.