Não informado. Science serves your farm and home. West Virginia Agricultural Experiment Station.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Science Serves Your Farm and Home. Morgantown, Wa. Va: West Virginia Agricultural Experiment Station.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Science Serves Your Farm and Home. West Virginia Agricultural Experiment Station.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.