00758nam a2200229Ia 4500 94627 BIBL 20160527205407.0 780614s19711986ag b 00010 spa | (OCoLC)03973108 FYM FYM m.c. OCL spaeng PUXA 370.78 T781i Travers, Robert Morris William dn 181281 Local Introducción a la investigación educacional Robert M. W. Travers ; [versión castellana de Eduardo J. Prieto] Buenos Aires Editorial Paidos 1986,c1971 525 p. 21 cm. Bibliography: p. 516-525. Educational Research. 90492 Local An introduction to educational research. 77546 77546 0 0 0 370_780000000000000_T781I 0 evl 377966 10 10 1 2016-05-27 148037 0 370.78 T781i 80000001202293 2016-05-27 00:00:00 r:94627 z:NCC:D 6 0 0 0 370_780000000000000_T781I 0 evl 377967 10 10 1 2016-05-27 148036 0 370.78 T781i 80000000818560 2016-05-27 00:00:00 r:94627 z:NCC:D 6