Text ( visual ) : unmediated Historical statistics of the United States, colonial times to 1970. -- Bicentennial ed. -- pt. 1 ; pt. 2. -- Washington, D.C. : U.S. Dept. of Commerce, Bureau of the Census : For sale by the Supt. of Docs., U.S. G.P.O. , 1975. -- 2 v. (xvi, 1200, 32 p.) ; 30 cm. -- (House documents ; 93rd Congress, 1st session, no. 78). -- Includes bibliographical references and indexes. -- (BA10232924) ; https://ci.nii.ac.jp/ncid/BA10232924 Author Heading(s): United States. Bureau of the Census. -- Classification(s): LCC : HA202 ; DC : 317.3. -- Subject Heading(s): LCSH : United States -- Statistics