00000nam 2200000 4500 INLIS000000001170594 20231201092950 0010-1223000009 ta 231201###########################0#eng## 1-55542-442-2 001.4 001.4 EGO e EGON G. GUBA EFFECTIVE AVALUATION : IMPROVING THE USEFULNESS OF EVALUTION RESULTH THROUGH RESPONSIVE AND NATULISTIC APPROACHES / EGON G. GUBA FRANCISCO : JOSSEY-BASS, 1981 xxv + 423 hlm ; 23 cm EVALUTION RESULTH YVONNA S. LINCOLN -