Otake, Risuke (1977). The Deity and the Sword - Katori Shinto-ryu Vol. 1, Japan, Japan Publications Trading Co. ISBN 0-87040-378-8 (original title volumes in Japanese is mukei Bunkazai Katori Shinto-ryu)
Otake, Risuke (1977). The Deity and the Sword - Katori Shinto-ryu Vol. 2, Japan, Japan Publications Trading Co. ISBN 0-87040-405-9
Otake, Risuke (1977). The Deity and the Sword - Katori Shinto-ryu Vol. 3, Japan, Japan Publications Trading Co. ISBN 0-87040-406-7
Donn, Draeger (1975). Classical Budo (Martial Arts & Ways of Japan Series) - Vol. 2, Weatherhill New York & Tokyo. ISBN 0-83480-234-1