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|a Datta S
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| 245 |
1 |
0 |
|a Labour productivity, wages and profits in a developing economy :
|b with special reference to coal mining industry of India /
|
| 260 |
|
|
|a Delhi :
|b B R Publishing corporation ;
|c 2006.
|
| 300 |
|
|
|a 312p.;
|
| 650 |
|
0 |
|a Labour productivity
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| 942 |
|
|
|c BK
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| 952 |
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