Tohei, K. (1962). What is Aikido? Rikugei Pub. House.
Lua i Stíl Chicago (17ú heag.)Tohei, Koichi. What Is Aikido? Tokyo: Rikugei Pub. House, 1962.
Lua MLA (9ú heag.)Tohei, Koichi. What Is Aikido? Rikugei Pub. House, 1962.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.