SpringerLink (Online service), Stufflebeam, D. L., Madaus, G. F., & Kellaghan, T. (2000). Evaluation Models: Viewpoints on Educational and Human Services Evaluation (Second Edition.). Springer Netherlands.
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Daniel L. Stufflebeam, George F. Madaus, και Thomas Kellaghan. Evaluation Models: Viewpoints on Educational and Human Services Evaluation. Second Edition. Dordrecht: Springer Netherlands, 2000.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Evaluation Models: Viewpoints on Educational and Human Services Evaluation. Second Edition. Springer Netherlands, 2000.
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