International co-operation on cartography :
report of the Secretary-General.
APA Citation
United Nations. Economic and Social Council. (1956). International co-operation on cartography: report of the Secretary-General. [New York, N.Y.?]: United Nations.
MLA Citation
United Nations. Economic and Social Council. International Co-operation On Cartography: Report of the Secretary-General. [New York, N.Y.?]: United Nations, 1956.
Warning: These citations may not always be complete (especially for serials).