| 000 | 00406nam a2200145Ia 4500 | ||
|---|---|---|---|
| 003 | NIELib | ||
| 008 | 211019s9999||||xx |||||||||||||| ||und|| | ||
| 082 |
_a375 _bNAT |
||
| 110 |
_914670 _aNational Science Foundation |
||
| 245 | _aScience course improvement projects | ||
| 260 |
_bNational Science Foundation, _c1964. _aWashington : |
||
| 300 |
_avi,77p.; _c26cm |
||
| 650 | _aCurriculum | ||
| 942 |
_2ddc _cSR |
||
| 999 |
_c28651 _d28651 |
||