RYUHO OKAWA. (2009). 10 rules of wisdom: Principles for creation of an ideal world. Jaico Publishing House.
शिकागो स्टाइल उद्धरणRYUHO OKAWA. 10 Rules of Wisdom: Principles for Creation of an Ideal World. Mumbai: Jaico Publishing House, 2009.
एमएलए उद्धरणRYUHO OKAWA. 10 Rules of Wisdom: Principles for Creation of an Ideal World. Jaico Publishing House, 2009.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.