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| LEADER |
00620Cam#a2200205#a#4500 |
| 001 |
ECUCON007253 |
| 003 |
ECU |
| 008 |
191101s1976 ag ||||| |||||||| ||spa d |
| 040 |
# |
# |
|a ECU
|b spa
|c ECU
|
| 092 |
# |
# |
|s Educ.
|
| 245 |
# |
# |
|a CONSTRUCCION DE MATERIAL DIDACTICO PARA LA ENSENANZA DE CIENCIAS. I: BIOLOGIA
|
| 260 |
# |
# |
|a BUENOS AIRES
|b GUADALUPE
|c 1976
|
| 300 |
# |
# |
|a 274 p.
|
| 590 |
# |
# |
|a TRADUCCION DE JORGE PETRAY Y CARLOS BRANA
|
| 650 |
# |
# |
|a EDUCACION
|
| 650 |
# |
# |
|a DIDACTICAS
|
| 650 |
# |
# |
|a METODOS
|
| 650 |
# |
# |
|a CIENCIAS NATURALES
|
| 700 |
# |
# |
|a CENTRO DE ENSENANZA DE LAS CIENCIAS
|
| 710 |
# |
# |
|a UNIVERSIDAD DE MARYLAND, COLLEGE PARK E. U. A.
|
