Items where Author is "Hall, H. Duncan"
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Hall, H. Duncan and Jones, R. C. (1948) Question on when the British acquired the Norden bombsight from the US. No Publisher. (Unpublished)
Up a levelHall, H. Duncan and Jones, R. C. (1948) Question on when the British acquired the Norden bombsight from the US. No Publisher. (Unpublished)