Yottsu no ryū
MLA
Konaga, Keiichi. Yottsu No Ryū. Tōkyō: Nihon Kogyō Ginkō, [630?]
APA, 7th edition
Konaga, K. ([630?]). Yottsu no ryū. Tōkyō: Nihon Kogyō Ginkō
Chicago, 17th edition
Konaga, Keiichi. Yottsu no ryū. Tōkyō: Nihon Kogyō Ginkō, [630?]