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*Axler, R. (n.d.) [http://www.lakesuperiorstreams.org/understanding/impact_salt_2.html How Much Salt is a Problem?]. Lake Superior Duluth Streams. | *Axler, R. (n.d.) [http://www.lakesuperiorstreams.org/understanding/impact_salt_2.html How Much Salt is a Problem?]. Lake Superior Duluth Streams. | ||
− | *[http://docs.trb.org/prp/15-4555.pdf Clear Roads Research Study: Field Evaluation of Organic Materials for Winter Snow and Ice Control]. | + | *Hosseini, F., Hossain, S. M. K., Fu, L., Gabriel, P.S., and van Seters, T. 2015. [http://docs.trb.org/prp/15-4555.pdf Clear Roads Research Study: Field Evaluation of Organic Materials for Winter Snow and Ice Control]. Transportation Research Board 94th Annual Meeting. Paper 15-4555. |
− | * | + | *[http://environment.nationalgeographic.com/environment/freshwater/freshwater-crisis/ Freshwater Crisis]. (n.d.) National Geographic. |
*Healthy Rivers: a Water Course. (2004). [Multimedia CD]. St. Paul MN: Minnesota Department of Natural Resources. http://www.dnr.state.mn.us/publications/cdroms/index.html. | *Healthy Rivers: a Water Course. (2004). [Multimedia CD]. St. Paul MN: Minnesota Department of Natural Resources. http://www.dnr.state.mn.us/publications/cdroms/index.html. | ||
*Healthy Rivers: a Water Course (n.d.) [online interactive learning tool]. http://files.dnr.state.mn.us/assistance/backyard/healthyrivers/course/100/101_00.html | *Healthy Rivers: a Water Course (n.d.) [online interactive learning tool]. http://files.dnr.state.mn.us/assistance/backyard/healthyrivers/course/100/101_00.html |
Minneapolis/St. Paul Metropolitan Area. University of Minnesota St. Anthony Falls Laboratory Engineering, Environmental and Geophysical Fluid Dynamics. Report No. 503. Prepared for Minnesota Department of Transportation. https://conservancy.umn.edu/bitstream/handle/11299/115332/pr503.pdf?sequence=1