(1979). Energy: Current situation and related firms. Tokyo: The Nomura Sercurities.
शिकागो स्टाइल उद्धरणEnergy: Current Situation and Related Firms. Tokyo: The Nomura Sercurities, 1979.
एमएलए उद्धरणEnergy: Current Situation and Related Firms. Tokyo: The Nomura Sercurities, 1979.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.