I'd suggest 'The Rickover Effect' by Theodore Rockwell. The author gives a firsthand account of what it was like to be part of the teams who created the first nuclear-powered submarine and civilian nuclear power plant (perhaps counterintuitively, in that order). There is a fair amount of discussion about people, culture and leadership, but it is very grounded and very detailed about the mechanics of what went into these projects and how the former made the latter possible.