00720nam a2200229Ia 4500 186845 BIBL 20160527191012.0 750702s1974 cau b 00110 eng d 73094232 053400346X (OCoLC)01425489 LB1028 .W275 Wallen, Norman E. Local 186903 Educational research a guide to the process Norman E. Wallen. Experimental ed. Belmont, Calif. Wadsworth Pub. Co. 1974. xii, 250 p. Wadsworth series in curriculum and instruction Local 186585 Includes bibliographies and index. Education Research. Local 90399 142409 142409 0 0 lc 0 LB_1028_000000000000000__W275_1974 0 mbl 132707 12 12 20 2016-05-27 DonaciØn 275186 0 LB1028 .W275 1974 50000001868685 2016-05-27 00:00:00 r:186845 z:NCC:D 6