Mayer, K. R. (2023). Forest resources of Liberia. United States Department of Agriculture, Washington D C.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMayer, Karl R. Forest Resources of Liberia. United States Department of Agriculture, Washington D C, 2023.
एमएलए (9वां संस्करण) प्रशस्ति पत्रMayer, Karl R. Forest Resources of Liberia. United States Department of Agriculture, Washington D C, 2023.
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