00501nam a2200169Ia 4500008004100000020001500041020001800056041000800074050002200082100001900104245007000123260004700193300002200240650002800262650001700290700002400307200917s9999||||xx |||||||||||||| ||und||  a0803932359  a9780803932357  aeng  aAZ191b.G82 1989   aGuba, Egon G.  0aFourth generation evaluationb /cEgon G. Guba; Yvonna S. Lincoln  aNewbury Park, Calif. : bSage Publ.,c1989  a294 p.b;c23 cm.  aEvaluation-Methodology.  aNegotiation.  aLincoln, Yvonna S.