| 000 | 00507ng a22001697a 4500 | ||
|---|---|---|---|
| 245 | _aDelicate balance | ||
| 264 | 1 |
_bWGBH Boston _c1996 |
|
| 264 | 2 | _bPBS Video | |
| 490 | _aBreakthrough, the changing face of science in America; pt.6 | ||
| 599 |
_adistributor _b0 _e17 _gOctober 18 2016 |
||
| 599 |
_aAmazon _b0 _e17 _gOctober 18 2016 |
||
| 599 |
_aWorldCat _d806 _b1 _e17 _gOctober 18 2016 |
||
| 999 |
_c1192 _d1192 |
||