Ball, D., & Tanter, R. (2015). The tools of Owatatsumi: Japan's ocean surveillance and coastal defence capbilities. Australian National University Press.

Ball, Desmond, and Richard Tanter. The Tools of Owatatsumi: Japan's Ocean Surveillance and Coastal Defence Capbilities. Canberra, Australia: Australian National University Press, 2015.

Ball, Desmond, and Richard Tanter. The Tools of Owatatsumi: Japan's Ocean Surveillance and Coastal Defence Capbilities. Australian National University Press, 2015.