Não informado. (1992). Agricultural Science in Finland. Agricultural Research Centre of Finland.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Agricultural Science in Finland. Jokioinen, Finlandia: Agricultural Research Centre of Finland, 1992.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Agricultural Science in Finland. Agricultural Research Centre of Finland, 1992.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.