Statistical papers / Statistical Office of the United Nations. 1971 : Argentina, Brunei, Burma, Chile, Kuwait, Netherlands Antilles, Peru, Sri Lanka, Venezuela, Western Samoa, Zambia / ... Department of Economic and Social Affairs. — 1975. — [8], 260 с. — (Statistical papers. Series D ; vol. 21, № 1-18) (Statistical papers. Series D, 1975)