00606nam a2200205Ia 4500 218149 BIBL 20181115140807.0 010910r19971989mx d f| ||| 0|1 0 ||||d 8475095176 23.00 mb LB1028 .H3118 1997 v.2 371.102072 W832i E Wittrock Merlin C. Local 189970 La investigacion de la ensenanza, II Metodos cualitativos y de observacion Merlin C. Wittrock Barcelona Paidos 1997. 431p. 22 cm. 2v Education Research Local 90455 163398 163398 0 0 lc 0 LB_1028_000000000000000__H3118_1997 0 mbl 291456 12 12 20 2016-05-27 Sara Greco 23.00 v.2 347001 0 LB1028 .H3118 1997 50000002082609 2016-05-27 00:00:00 r:218149 6