00847cam0-22002891i-450-99000386599040332120080122145308.00803913958000386599FED01000386599(Aleph)000386599FED0100038659920030910d1980----km-y0itay50------baengQualitative evaluation methodsMichael Quinn PattonBeverly HillsSage Publicationsc1980.381 p.23 cmScienze socialiMetodologiaValutazioneRicerca socialeMetodologiaPatton,Michael Quinn27659ITUNINARICAUNIMARCBK99000386599040332111130 PAR/8010631/ISESSESQualitative evaluation methods514760UNINA