SOCIAL-FACTORS IN LONGEVITY

[31] 1956, HLTH DEMOGRAPHY, P59

[32] 1950, CURRENT POPULATION R, P10

[33] 1960, 114 CURR POP REP BUR

[34] 1960, CURRENT POPULATION R

[35] 1934, SUMMARY INT VITAL ST, P26

[36] 1950, SPECIAL REPORT ED

[37] 1947, 16TH CENSUS US 1940

[38] 1960, HIST STATISTICS US C, P214

[39] 1948, AM FAMILY FACTUAL BA

[40] 1932, STATIST B METROP LIF, V13, P5

[31] 1956, HLTH DEMOGRAPHY, P59

[32] 1950, CURRENT POPULATION R, P10

[33] 1960, 114 CURR POP REP BUR

[34] 1960, CURRENT POPULATION R

[35] 1934, SUMMARY INT VITAL ST, P26

[36] 1950, SPECIAL REPORT ED

[37] 1947, 16TH CENSUS US 1940

[38] 1960, HIST STATISTICS US C, P214

[39] 1948, AM FAMILY FACTUAL BA

[40] 1932, STATIST B METROP LIF, V13, P5