APA
United Nations Industrial Development Organisation (Vienna), . (1969). Report of the meeting of the Ad-Hoc Expert Ground on fertilizer production in six selected countries with good natural gas resources. New York: United Nations.
Chicago
United Nations Industrial Development Organisation (Vienna), . 1969. Report of the meeting of the Ad-Hoc Expert Ground on fertilizer production in six selected countries with good natural gas resources. New York: United Nations.
Harvard
United Nations Industrial Development Organisation (Vienna), . (1969). Report of the meeting of the Ad-Hoc Expert Ground on fertilizer production in six selected countries with good natural gas resources. New York: United Nations.
MLA
United Nations Industrial Development Organisation (Vienna), . Report of the meeting of the Ad-Hoc Expert Ground on fertilizer production in six selected countries with good natural gas resources. New York: United Nations. 1969.