Stevens, A. H. (1995). Climbing out of poverty, falling back in: Measuring the persistence of poverty over multiple spells. National Bureau of Economic Research.
Citace podle Chicago (17th ed.)Stevens, Ann Huff. Climbing Out of Poverty, Falling Back in: Measuring the Persistence of Poverty over Multiple Spells. Cambridge: National Bureau of Economic Research, 1995.
Citace podle MLA (9th ed.)Stevens, Ann Huff. Climbing Out of Poverty, Falling Back in: Measuring the Persistence of Poverty over Multiple Spells. National Bureau of Economic Research, 1995.
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