John Hrastar
John Hrastar had a 50-year career in the aerospace industry, most of it with NASA. He now researches and writes on history. He lives in Silver Spring, Maryland.
John Hrastar had a 50-year career in the aerospace industry, most of it with NASA. He now researches and writes on history. He lives in Silver Spring, Maryland. See less
John Hrastar's Featured Books
