Statistical papers / Statistical Office of the United Nations. 1968 : Portugal, Netherlands Antilles, Western Samoa, Sabah, Korea, Republic of, Hong Kong, Ceylon, Thailand, Ghana, Ivory Coast / ... Department of Economic and Social Affairs. — 1970. — С. [3], 8626―8864. — (Statistical papers. Series D ; vol. 18, № 1-33) (Statistical papers. Series D, 1970)