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| 003 | AR-LpUBP | ||
| 005 | 20240702162125.0 | ||
| 007 | ta | ||
| 008 | 111118s1931 xxu g 000 0 eng d | ||
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_aAR-LpUBP _bspa _cAR-LpUBP |
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| 245 | 1 | 0 | _aReport of the national research council for the year july 1, 1929- june 30, 1930 |
| 260 |
_aWashington : _bGovernment Printing Office, _c1931. |
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| 942 | _cBK | ||
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_c371642 _d371642 |
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_c76 _dMaría Victoria Somoza _a76 _bMaría Victoria Somoza |
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