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A Student's Introduction to Accessing the 1970 Census
United States. Bureau of the Census
其他書名
With Exercises on Subjects, Geography, Publication Media, Reference Sources
出版Bureau of the Census, 1975
URLhttp://books.google.com.hk/books?id=q9BrH6dtW4sC&hl=&source=gbs_api
EBookFULL_PUBLIC_DOMAIN