-. Happy Counting Book: - (-.). Froebel-Kan co.,ltd.
Chicago Style (17th ed.) Citation-. Happy Counting Book: -. -. Tokoyo: Froebel-Kan co.,ltd.
MLA (9th ed.) Citation-. Happy Counting Book: -. -. Froebel-Kan co.,ltd.
Warning: These citations may not always be 100% accurate.