Cover title: The B-17 Flying Fortress. https://siris-libraries.si.edu/ipac20/ipac.jsp?&profile=liball&source=~!silibraries&uri=full=3100001~!59353~!0#focus ...
According to Arrette, "though most design work these days is being done on computers, the design process is a cycle: from the original idea, to paper, to computer, to paper, and back again many times.
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