University of Illinois Urbana-Champaign

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Thumbnail for Proceedings: second Sanitary Engineering Conference: radiological aspects of water supplies
Proceedings: second Sanitary Engineering Conference: radiological aspects of water supplies
Illinois State Department of Public Health and the University of Illinois

Thumbnail for Second International Mathematics Study (SIMS) Instruments - Population A (Middle School)
Second International Mathematics Study (SIMS) Instruments - Population A (Middle School)
International Association for the Evaluation of Educational Achievement (IEA)