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1Knjigaod Shapero, Albert“...United States. Office of the Director of Defense Research and Engineering...”
Izdano 1965
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2Knjigaod Douglass, Joseph D.“...United States. Office of the Director of Defense Research and Engineering...”
Izdano 1976
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3Government Document Conference ProceedingIzdano 1964“...United States. Office of the Director of Defense Research and Engineering...”