Mayer, K. R. (2023). Forest resources of Liberia. United States Department of Agriculture, Washington D C.
Cita Chicago (17th ed.)Mayer, Karl R. Forest Resources of Liberia. United States Department of Agriculture, Washington D C, 2023.
Cita MLA (9th ed.)Mayer, Karl R. Forest Resources of Liberia. United States Department of Agriculture, Washington D C, 2023.
Atenció: Aquestes cites poden no estar 100% correctes.