MARC
| LEADER | 00000nam a2200000Ia 4500 | ||
|---|---|---|---|
| 008 | 170403b1969 us ||||| |||| 00| | e d | ||
| 999 | |c 1178 |d 1178 | ||
| 090 | |a 372.35 |b G167s | ||
| 100 | 1 | |a Gallagher James J. |9 2650 | |
| 245 | 1 | 2 | |a A summary research in science education for the years of 1968-69 |
| 260 | |a Ohio, Estados Unidos : |b ERIC, |c 1969 | ||
| 300 | |a 65 páginas | ||
| 650 | 1 | 4 | |a CIENCIA |9 890 |
| 650 | 1 | 4 | |a ENSEÑANZA |9 14 |
| 942 | |i 257326 |h 372.35 G167s |2 z |c 01 | ||