Intellectual Property Strategy (The MIT Press Essential Knowledge series)-
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| Average | $13.10 (30d avg) $13.10 (90d avg) $12.80 (180d avg) $11.94 (365d avg) $11.32 (Lifetime average) |
| Added | Sep 10, 2013 |
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| Average | $7.10 (30d avg) $8.11 (90d avg) $8.34 (180d avg) $7.80 (365d avg) $7.55 (Lifetime average) |
| Added | Sep 10, 2013 |
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| Average | $5.39 (30d avg) $7.26 (90d avg) $6.67 (180d avg) $6.29 (365d avg) $6.41 (Lifetime average) |
| Added | Sep 10, 2013 |
30 day average: 226,870
90 day average: 268,203