Ōkawa, R. (2003). The origin of love: On the beauty of compassion. Lantern Books.
Chicago-viite (17. p.)Ōkawa, Ryūhō. The Origin of Love: On the Beauty of Compassion. New York: Lantern Books, 2003.
MLA-viite (9. p.)Ōkawa, Ryūhō. The Origin of Love: On the Beauty of Compassion. Lantern Books, 2003.
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