During 1990 Census, American Census Bureau organized a sampling survey for concluding experience of census to find out omitted or duplicated reasons belonging to people.
During 1990 Census, American Census Bureau organized a sampling survey for concluding experience of census to find out omitted or duplicated reasons belonging to people.
摘要在1990年人口普查中，美国人口普查局专门专门组织了一次旨在总结普查经验的抽样调查，以查明人口普查遗漏（重复）的原因。