Oi, M. (1960). Step by step in sumi painting. Chiyoda Publishing.
Chicago Style (17th ed.) ZitazioaOi, Motoi. Step by Step in Sumi Painting. Tokyo: Chiyoda Publishing, 1960.
MLA (9th ed.) ZitazioaOi, Motoi. Step by Step in Sumi Painting. Chiyoda Publishing, 1960.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.