Mayer, K. R. (2023). Forest resources of Liberia. United States Department of Agriculture, Washington D C.
Chicago-čujuhus (17. p.)Mayer, Karl R. Forest Resources of Liberia. United States Department of Agriculture, Washington D C, 2023.
MLA-čujuhus (9. p.)Mayer, Karl R. Forest Resources of Liberia. United States Department of Agriculture, Washington D C, 2023.
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