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1LEABHARde réir Shapero, Albert“…United States. Office of the Director of Defense Research and Engineering…”
Foilsithe / Cruthaithe 1965
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2LEABHARde réir Douglass, Joseph D.“…United States. Office of the Director of Defense Research and Engineering…”
Foilsithe / Cruthaithe 1976
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3Doiciméad rialtais Imeacht comhdhálaFoilsithe / Cruthaithe 1964“…United States. Office of the Director of Defense Research and Engineering…”