00651nam a2200169Ia 4500 190328s9999||||xx |||||||||||||| ||und|| 61-13172 NITIL NITIL 21st 370.072 V217U Van Dalen, Deobold B Understanding educational research an introduction Deobold B Van Dalen New York McGraw-Hill 1962 xi, 432p. McGraw-Hill series in education/ed by Harold Benjamin (Psychology and human development in education/ed by Nicholas Hobbs) Education-Research-Mexico; Education-Evaluation-Evaluation; Education-Statistics BKS 29335 29335 0 0 DDC 0 0 NITIL NITIL 2019-04-03 0 370.072 V217U 37795 2019-04-03 00:00:00 2019-04-03 BKS