(front left) Iwasaburo Okino, Roson Ashiya, Ujaku Akita, Akira Maeda, Yoshihiko Fujisawa. (middle left) Asahiko Sakai, Kenjiro Tsukahara, Taiji Kawasaki. (back left) Yuji Ooki, Mimei Ogawa, Kusuro Makimoto, Koji Uno.
Unknown author<span style="display: none;">Unknown author</span>
Japanese Children's literature series 30