Tohutoro APA (7th ed.)
Butter, K. D. e. (1976). Early Japan, Heian. The Japan Foundation.
Tohutoru Kātū Chicago (17th ed.)
Butter, Kenneth D. ed. Early Japan, Heian. Tokyo: The Japan Foundation, 1976.
Tohutoro MLA (9th ed.)
Butter, Kenneth D. ed. Early Japan, Heian. The Japan Foundation, 1976.
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