Monthly Shōnen Magazine
The first serialization ran from July 22, 1973 to September 29, 1974 in "Weekly Shōnen Magazine", published by Kodansha. The second ran in "Monthly Shōnen Magazine", also published by Kodansha, from July 1977 to December 1978, with a few gaps between months. This two serializations of Kodansha were originally published in 7 volumes.