Sparling, D. W. (2014). Natural resource administration: Wildlife, fisheries, forests and parks. Academic Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSparling, Donald W. Natural Resource Administration: Wildlife, Fisheries, Forests and Parks. San Diego, CA: Academic Press, 2014.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSparling, Donald W. Natural Resource Administration: Wildlife, Fisheries, Forests and Parks. Academic Press, 2014.
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