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| LEADER |
00599Cam#a2200241#a#4500 |
| 001 |
ECUCON007375 |
| 003 |
ECU |
| 008 |
191101s1970 ag ||||| |||||||| ||spa d |
| 040 |
# |
# |
|a ECU
|b spa
|c ECU
|
| 092 |
# |
# |
|s Educ.
|
| 100 |
# |
# |
|a Fowler, H. Seymour
|
| 245 |
# |
3 |
|a Las ciencias en la escuela
|
| 260 |
# |
# |
|a Buenhos Aires
|b Troquel
|c 1970
|
| 300 |
# |
# |
|a 142 p.
|
| 590 |
# |
# |
|a Traducción de Adolfo Jasca
|
| 650 |
# |
# |
|a EDUCACION
|
| 650 |
# |
# |
|a JOVENES
|
| 650 |
# |
# |
|a CIENCIA
|
| 650 |
# |
# |
|a CONOCIMIENTO
|
| 650 |
# |
# |
|a CIENCIAS NATURALES
|
| 650 |
# |
# |
|a FISICO
|
| 650 |
# |
# |
|a QUIMICA
|
| 952 |
# |
# |
|p ECU25981
|a ECU
|b ECU
|o Educ.
|w 18-05-93
|
