TY  - BOOK
A2  - Donald B. Yarbrough [et al.] ; Joint Committee on Standards for Educational Evaluation.
A3  - Yarbrough, Donald B.
ET  - 3rd ed.
NV  - XLVII, 334 s. ;
PY  - 2011
SN  - 9781412986564
SN  - 9781412989084
TI  - The program evaluation standards : a guide for evaluators and evaluation users /
ER  -