-------------------- YOULIBR - Атмосфера DJVU | PDF 1938 BOOKS POPULAR SCIENCE atmosfera
BOOKS - POPULAR SCIENCE - Атмосфера
Атмосфера - 1938 DJVU | PDF М, АН СССР BOOKS POPULAR SCIENCE
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Атмосфера
Year: 1938
Number of pages: 138
Format: DJVU | PDF
File size: 12MB

... The conquest of the stratosphere is the most important task of modern aviation and aeronautics. However, all new paths in technology must be based on preliminary scientific research...

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