Caso 2 - Resources
              Appelhof, Mary. (1982). Worms Eat My Garbage. Kalamazoo, MI: 
                Flower Press. How to set up and maintain a worm composting system. 
               
               Appelhoff, Mary, Fenton, Mary Frances, and Harris, Barbara Loss. 
                (1993). Worms Eat Our Garbage: Classroom Activities for a Better 
                Environment. Kalamazoo, MI: Flower Press. A curriculum guide and 
                activity book for worm composting. 
               Bourgeois, Paulette. (1990). The Amazing Dirt Book. Reading, 
                MA: Adddison Wesley Publishing Company. Two dozen fun projects 
                for home or school. 
               Campbell, Stu. (1990). Let It Rot. Pownal, VT: Storey Communications. 
                The gardener's guide to composting. 
               Horton, Robert, Heimlick, Joseph E., Hollyer, James R., and 
                Owen, Bill. (1995). Soils Alive: From Tiny Rocks to Compost. Washington: 
                USDA, National 4-H Council. An environmental source book of activities 
                focusing on the living and non-living components of soil and their 
                relationship to the earth's natural cycles. 
               Ingram, Mrill. (1993). Bottle Biology. Dubuque, IA: Kendall/Hunt 
                Publishing Company. An idea book for exploring the world through 
                plastic bottles and other recyclable materials. Includes a chapter 
                on soils. 
               Carey's Worm Ranch, 106 Pioneer Drive, Minooka, IL 60447, (815) 
                467-2668. Source for worm bins, worms, and worm composting manuals. 
                Mark Carey will set up classroom field trips to his worm ranch. 
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