Text ( visual ) : unmediated Dynamics of population : social and biological significance of changing birth rates in the United States / by Frank Lorimer and Frederick Osborn. -- New York : Macmillan , 1934. -- xiii, 461 p. ; 24 cm. -- Bibliography: p. [401]-442 ; Includes indexes. -- (BA2450750X) ; https://ci.nii.ac.jp/ncid/BA2450750X Author Heading(s): Lorimer, Frank ; Osborn, Frederick Henry

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