00455nam a22001577a 450000500170000000800410001702000150005804000130007308200190008610000200010524500790012525000120020426000460021630000110026265000240027320170915091708.0170915b        xxu||||| |||| 00| 0 eng d  a0133097250  cPK-LaUMT  a001.433bWEI-E  aWeiss, Carol H.  aEvaluation :bmethods for studying programs and policies /cCarol H. Weiss  a2nd ed.  aUpper Saddle River :bPrentice Hll,c1998  a372 p.  aEvaluation research