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090827s2009 maua b 000 0 eng d |
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|a GrThPMO
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| 050 |
1 |
4 |
|a HB1
|b .N38 no. 14777
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| 100 |
1 |
4 |
|a Babcock, Philip.
|
| 245 |
1 |
4 |
|a Reduced-class distinctions :
|b effort, ability, and the education production function /
|c Philip Babcock, Julian R. Betts.
|
| 260 |
1 |
4 |
|a Cambridge, Mass. :
|b National Bureau of Economic Research,
|c 2009.
|
| 300 |
1 |
4 |
|a 32 p. :
|b ill. ;
|c 22 cm.
|
| 490 |
1 |
4 |
|a NBER working paper series ;
|v no. 14777.
|
| 504 |
1 |
4 |
|a Includes bibliographical references.
|
| 650 |
1 |
4 |
|a Class size
|z California
|z San Diego.
|
| 650 |
1 |
4 |
|a Academic achievement
|z California
|z San Diego.
|
| 650 |
1 |
4 |
|a Motivation in education
|z California
|
| 700 |
1 |
4 |
|a Betts, Julian R.
|z San Diego.
|
| 710 |
2 |
4 |
|a National Bureau of Economic Research
|
| 952 |
|
|
|a GrThPMO
|b 59b0144a6c5ad17d7e5ad24e
|c 952a
|d 9528
|e HB1.N38 no. 14777
|t 7
|x m
|z Books
|
