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Subjects
Juvenile literature, Physics, Agricultural innovations, Combines (Agricultural machinery), Diffusion of innovations, Agriculture, Air, Energy conservation, Energy consumption, Flight, Mathematical models, Power resources, Science, Societies, Study and teaching (Element;ary), Study and teaching (Elementary), WeatherPlaces
SwedenID Numbers
- OLID: OL1897481A
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April 1, 2008 | Created by an anonymous user | initial import |