| 000 | 00439nam a22001457a 4500 | ||
|---|---|---|---|
| 005 | 20250815102405.0 | ||
| 008 | 250815b |||||||| |||| 00| 0 eng d | ||
| 020 | _a0393097242 | ||
| 050 | _aT 173.8.M3 1968 | ||
| 100 | _aE.mansfield | ||
| 245 |
_aIndustrial research and technological innovation an economics analysis _cEdwin mansfield |
||
| 260 |
_aToronto _bW.W. Norton and company _c1968 |
||
| 300 |
_axvii 235p; ill _bHbk |
||
| 942 | _cREF | ||
| 999 |
_c21770 _d21770 |
||