Heinen, H. J., McClelland, G. E., & Lindstrom, R. E. (1979). Enhancing percolation rates in heap leaching of gold-silver ores. U.S. Dept. of the Interior, Bureau of Mines.
Lua i Stíl Chicago (17ú heag.)Heinen, H. J., G. E. McClelland, agus R. E. Lindstrom. Enhancing Percolation Rates in Heap Leaching of Gold-silver Ores. Washington: U.S. Dept. of the Interior, Bureau of Mines, 1979.
Lua MLA (9ú heag.)Heinen, H. J., et al. Enhancing Percolation Rates in Heap Leaching of Gold-silver Ores. U.S. Dept. of the Interior, Bureau of Mines, 1979.
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