Nix, Emily <br/><br/>
The Fluidity of race :  Passing in the United States, 1880-1940 / 
Emily Nix and Nancy Qian 
 - Cambridge  NBER  2015 
 - 77p 
 - NBER Working Paper ;  20828 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>NBERWP 20828<br/>E14043.pdf