Coba jelasin Lihat pula dari Charles Lennox Richardson dong

Rennie, David. The British Arms in North China and Japan. Adamant Media Corporation. (2001, cetak ulang dari edisi 1864) ISBN 1-4021-8184-1

Denney, John. Respect and Consideration: Britain in Japan 1853 - 1868 and beyond. Radiance Press (2011). ISBN 978-0-9568798-0-6