Matches in Library of Congress for { <http://lccn.loc.gov/90214737> ?p ?o. }
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- 90214737 contributor B6274130.
- 90214737 created "1990.".
- 90214737 date "1990".
- 90214737 date "1990.".
- 90214737 dateCopyrighted "1990.".
- 90214737 extent "248 p., [9] p. of plates :".
- 90214737 issued "1990".
- 90214737 issued "1990.".
- 90214737 language "spa".
- 90214737 publisher "Lima, Perú : CONCYTEC,".
- 90214737 subject "371.2/54/0985 20".
- 90214737 subject "Ability grouping in education.".
- 90214737 subject "Instituto de Experimentación Educacional de Puno History.".
- 90214737 subject "LE68.P8 P62 1990".
- 90214737 title "Una escuela por niveles de madurez en el Perú / José Portugal Catacora.".
- 90214737 type "text".