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| 037 | _cGeneral Book | ||
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_aRTL _cRTL _beng |
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_2eng _aeng |
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_aRiley V _9236571 |
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_cRiley V; Allen R L _aInterindustry economic studies |
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_aBaltimore _bJohns Hopkins Press _c1955 |
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_a280p _ccm. |
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| 490 | _aJohns Hopkins university, Operations Research office, bibliographic reference series,4 | ||
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_aWork Study _9234105 |
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_a Allen R L _968416 |
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