Hartz, C. & Carlson, S. (2002). Exploring your environment : Youth activity guide. Level 3, Eco-actions. University of Minnesota Extension Service 4HCCS BU-07706.
Youth activity guide. This archival publication may not reflect current scientific knowledge or recommendations. Current information available from the University of Minnesota Extension: https://www.extension.umn.edu.
Hartz, Carrie; Carlson, Stephan.
Exploring your environment : youth activity guide. Level 3, Eco-actions.
University of Minnesota Extension Service.
Retrieved from the University of Minnesota Digital Conservancy,
Content distributed via the University of Minnesota's Digital Conservancy may be subject to additional license and use restrictions applied by the depositor.