Sei no jugyō: Shuyō tenkairei. Ōtsuki shoten.
Chicago Style (17th ed.) CitationSei No Jugyō: Shuyō Tenkairei. Tōkyō: Ōtsuki shoten.
MLA (9th ed.) CitationSei No Jugyō: Shuyō Tenkairei. Ōtsuki shoten.
Warning: These citations may not always be 100% accurate.