Popham, W. J. (1972). An evaluation guidebook: A set of practical guidelines for the educational evaluator. Instructional Objectives Exchange.
Chicago-referens (17:e uppl.)Popham, W. James. An Evaluation Guidebook: A Set of Practical Guidelines for the Educational Evaluator. Los Angeles, Calif: Instructional Objectives Exchange, 1972.
MLA-referens (8:e uppl.)Popham, W. James. An Evaluation Guidebook: A Set of Practical Guidelines for the Educational Evaluator. Instructional Objectives Exchange, 1972.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.