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Home Built Model Rocket Engines. Gary Jacobs. 1979.
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Permaculture (permanent agriculture) is the conscious design and maintenance of agriculturally productive ecosystems whi
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Книга Luftwaffe: 1946 Technical Manual. Band 3. Rocket Fighters. Luftwaffe: 1946 Technical Manual. Band 3. Rocket Fighte
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This classic manual on structural steel design provides a major source of reference for structural engineers and fabrica
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This manual for civil and structural engineers aims to simplify as much as possible a complex subject which is often tre
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