Ruttan, V. W. (1965). Changes in rice production, areas and yield in the Philippines and Thailand. s.n.].
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRuttan, Vernon W. Changes in Rice Production, Areas and Yield in the Philippines and Thailand. [Thailand: s.n.], 1965.
एमएलए (9वां संस्करण) प्रशस्ति पत्रRuttan, Vernon W. Changes in Rice Production, Areas and Yield in the Philippines and Thailand. s.n.], 1965.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.