MARC
| LEADER | 00000nam a2200000Ia 4500 | ||
|---|---|---|---|
| 008 | 170504b1972 u ||||| |||| 00| 0 e d | ||
| 999 | |c 1185 |d 1185 | ||
| 090 | |a 082507 |b K84s | ||
| 100 | 1 | |a Koran, John J. |9 2692 | |
| 245 | 1 | 2 | |a A summary of research in science education for the years of 1968-69 college level science |
| 260 | |a Ohio, Estados Unidos : |b ERIC, |c 1972 | ||
| 300 | |a 69 páginas | ||
| 650 | 1 | 4 | |a CIENCIA |9 890 |
| 650 | 1 | 4 | |a ENSEÑANZA |9 14 |
| 942 | |i 257332 |h 082507 K84s |2 z |c 01 | ||