APA-viite (7. p.)

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.

Chicago-viite (17. p.)

Heinen, H. J., G. E. McClelland, ja R. E. Lindstrom. Enhancing Percolation Rates in Heap Leaching of Gold-silver Ores. Washington: U.S. Dept. of the Interior, Bureau of Mines, 1979.

MLA-viite (9. p.)

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.