Não informado. (2000). Comprehensive index of publications. American Society of Agricultural Engineers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Comprehensive Index of Publications. St. Joseph, Mich: American Society of Agricultural Engineers, 2000.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Comprehensive Index of Publications. American Society of Agricultural Engineers, 2000.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.