| 000 | 00399nam a2200145Ia 4500 | ||
|---|---|---|---|
| 008 | 220809s9999 xx 000 0 und d | ||
| 040 | _cQNASLib | ||
| 082 | _aLB2955 .I554 1975 | ||
| 100 | _a[n.a.] | ||
| 245 | 0 | _aInnovations in science education: monograph no.4 | |
| 260 |
_aQuezon City _bUniversity of the Philippines _c1975 |
||
| 650 | _aMonograph in education. | ||
| 942 | _cBK | ||
| 999 |
_c28188 _d28188 |
||