The case of the Indians and the teen-age widows.
D019352:Censuses; D001330:Electronic Data Processing; D005568:Forms and Records Control; D011154:Population Characteristics; D015203:Reproducibility of Results; D012106:Research; D012107:Research Design; D014481:United States
Census; Census Methods; Coding; Error Sources; Information; Information Processing; Measurement; Population Statistics; Reliability; Research Methodology; Research Report; United States