Okawa, R. (1990). The laws of the sun: The revelation of Buddha that enlightens the new age. Institute for Research in Human Happiness.
Citace podle Chicago (17th ed.)Okawa, Ryuho. The Laws of the Sun: The Revelation of Buddha That Enlightens the New Age. Tokyo: Institute for Research in Human Happiness, 1990.
Citace podle MLA (9th ed.)Okawa, Ryuho. The Laws of the Sun: The Revelation of Buddha That Enlightens the New Age. Institute for Research in Human Happiness, 1990.
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