Sora iro no tane
By: Nakagawa Rieko ; Ōmura Yuriko e [illustrator].
Contributors: Ōmura Yuriko.
Series: Kodomo no tomo -- 25
Publisher: Fukuinkan
Published: 1964
Place of publication: Tokyo
Language: jpn
Notes: Title in English: The Sky-coloured seed/The Blue seed.