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Dyfyniad Arddull ChicagoAchenbaum, W. Andrew. Safeguarding Social Security for Future Generations: Leaving a Legacy in an Aging Society. London, New York: Routledge Taylor & Francis Group, 2023.
Dyfyniad MLAAchenbaum, W. Andrew. Safeguarding Social Security for Future Generations: Leaving a Legacy in an Aging Society. Routledge Taylor & Francis Group, 2023.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.