Keikai ca. 9. Jh. (1901). Nihonkoku gempō zen'aku ryōi-ki: = Nihon ryōi-ki. Keizai Zasshisha.
Chicago Style (17th ed.) CitationKeikai ca. 9. Jh. Nihonkoku Gempō Zen'aku Ryōi-ki: = Nihon Ryōi-ki. Tōkyō: Keizai Zasshisha, 1901.
MLA (9th ed.) CitationKeikai ca. 9. Jh. Nihonkoku Gempō Zen'aku Ryōi-ki: = Nihon Ryōi-ki. Keizai Zasshisha, 1901.
Warning: These citations may not always be 100% accurate.