Okubo, M. (1981). Increase in mortality of middle-aged males in Japan. Population Research Institute, Nihon University.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOkubo, Masakazu. Increase in Mortality of Middle-aged Males in Japan. Tokyo: Population Research Institute, Nihon University, 1981.
एमएलए (9वां संस्करण) प्रशस्ति पत्रOkubo, Masakazu. Increase in Mortality of Middle-aged Males in Japan. Population Research Institute, Nihon University, 1981.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.