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Report of the IX Session of the Committee on Improvement of National Statistics (COINS), Santiago, Chile, November 23-27, 1981
Inter-American Statistical Institute. Committee on Improvement of National Statistics
出版
Pan American Union, Secretariat of the Organization of American States
, 1968
URL
http://books.google.com.hk/books?id=75E5AQAAIAAJ&hl=&source=gbs_api