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Ralph Harbison
R. H.
ยท
Ralph H.
title
ISBN-13
(ISBN-10)
year of publica-
tion
other author(s)
Educational Performance of the Poor: Lessons from Rural Northeast Brazil
978-O-19-52O878-8
(O-19-52O878-1)
1992
Eric A. Hanushek
Ralph-Hardo Schulz