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![Cover for Donald B. Yarbrough · The Program Evaluation Standards: A Guide for Evaluators and Evaluation Users (Paperback Book) [3 Revised edition] (2010)](https://imusic.b-cdn.net/images/item/original/084/9781412989084.jpg?donald-b-yarbrough-2010-the-program-evaluation-standards-a-guide-for-evaluators-and-evaluation-users-paperback-book&class=scaled&v=1437132818)
![Cover for Donald B. Yarbrough · The Program Evaluation Standards: A Guide for Evaluators and Evaluation Users (Hardcover Book) [3 Revised edition] (2010)](https://imusic.b-cdn.net/images/item/original/564/9781412986564.jpg?donald-b-yarbrough-2010-the-program-evaluation-standards-a-guide-for-evaluators-and-evaluation-users-hardcover-book&class=scaled&v=1437132818)