000 00651nam a2200169Ia 4500
008 190328s9999||||xx |||||||||||||| ||und||
010 _a61-13172
040 _aNITIL
_cNITIL
082 _221st
_a370.072
_bV217U
100 _aVan Dalen, Deobold B
245 0 _aUnderstanding educational research
_ban introduction
_cDeobold B Van Dalen
260 _aNew York
_bMcGraw-Hill
_c1962
300 _axi, 432p.
440 _aMcGraw-Hill series in education/ed by Harold Benjamin (Psychology and human development in education/ed by Nicholas Hobbs)
650 _aEducation-Research-Mexico; Education-Evaluation-Evaluation; Education-Statistics
942 _cBKS
999 _c29335
_d29335