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HAJNAL J, 1953, POPULATION INDEX, V18, P80
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*METR LIF INS CO, 1945, STAT B, V26
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*NAT OFF VIT STAT, 1947, SPEC REP SEL STUD 16, V23
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*NAT OFF VIT STAT, 1954, SPEC REP 1, V41
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*NAT OFF VIT STAT, 1956, SPEC REP 2, V44
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*US BUR CENS, 1955, 1950 CENS POP 5, V4, pCHC