| LEADER | 00448nam a22001571a 4500 | ||
|---|---|---|---|
| 001 | UNA01000016840 | ||
| 005 | 20120328185328.0 | ||
| 008 | 080728s1968 000 0 spa d | ||
| 040 | |a Sistema de Bibliotecas de la Universidad Nacional de Costa Rica | ||
| 082 | 0 | 4 | |a 372.3 |b S557c |
| 100 | 1 | |a Schneider, Herman | |
| 245 | 1 | 3 | |a La ciencia en tu mundo |
| 260 | |a Massachusetts : |b Heath , |c 1968 | ||
| 300 | |a 332 p. ; |c 24 cm. | ||
| 650 | 0 | 4 | |a CIENCIA |
| 650 | 0 | 4 | |a ENSEÑANZA |