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Incoming Resources
- Minerals, from apatite to zinc, by Darlene R. Stille
- Sedimentary rocks, a record of Earth's history, by Darlene R. Stille
- Madam C.J. Walker, entrepreneur and millionaire, by Darlene R. Stille
- Plate tectonics, Earth's moving crust, by Darlene R. Stille
- Soil, digging into earth's vital resource, by Darlene R. Stille
- Natural resources, using and protecting earth's supplies, by Darlene R. Stille
- Metamorphic rocks, recycled rock, by Darlene R. Stille
- Erosion, how land forms, how it changes, by Darlene R. Stille
- The greenhouse effect, by Darlene R. Stille
- Igneous rocks, from fire to stone, by Darlene R. Stille