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| 005 | 20201026160009.0 | ||
| 008 | 090310s1970 xxu ||||| spa | ||
| 035 | |a 9221488 | ||
| 040 | |a Sistema de Bibliotecas de Universidad de Costa Rica | ||
| 041 | 0 | |a spa | |
| 082 | 0 | |a 370.16 |b C386e |2 00 | |
| 110 | 2 | |a CCN Information Corporation |e Autor/a |4 aut | |
| 245 | 1 | 0 | |a ERIC educational documents index, 1966-1969. |
| 260 | |a New York : |b [editor no identificado], |c 1970. | ||
| 300 | |a 2 volúmenes. | ||
| 650 | 0 | 7 | |a EDUCACION |v INDICES |
| 912 | |a 10-MAR-2009 - VARGAS ZUÑIGA, SUSAN | ||
| 917 | |a 10-MAR-2009 - VARGAS ZUÑIGA, SUSAN | ||
| 949 | |a -SVZ | ||
| 916 | |a Reconversión | ||