Carlson, StephanMaxa, Sue2015-05-012015-05-011997Carlson, S. & Maxa, S. (1997). Science guidelines for nonformal education. Lansing, Mich.: National Network for Science and Technology. 4H- 590.https://hdl.handle.net/11299/172079This archival publication may not reflect current scientific knowledge or recommendations. Current information available from the University of Minnesota Extension: https://www.extension.umn.edu.enscience teachingReport