How secure is social security? / Nathan Keyfitz
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| Superior document: | Working paper / International Institute for Applied Systems Analysis WP-81-101 |
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| VerfasserIn: | |
| Place / Publishing House: | Laxenburg : IIASA, 1981 |
| Year of Publication: | 1981 |
| Language: | English |
| Series: | Working paper / International Institute for Applied Systems Analysis
WP-81-101 |
| Physical Description: | vii, 35 S. |
| Notes: | Literaturverz. S. 33 - 34 |
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