Grebner, D. L., Bettinger, P., & Siry, J. P. (2013). Introduction to forestry and natural resources. Academic Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGrebner, Donald L., Pete Bettinger, और Jacek P. Siry. Introduction to Forestry and Natural Resources. London, UK: Academic Press, 2013.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGrebner, Donald L., et al. Introduction to Forestry and Natural Resources. Academic Press, 2013.
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