APA-viite (7. p.)

Lei, K. P. V., Carnahan, T. G., & Eisele, J. A. (1982). Recovery of sulfur and accessory metals from a leaching process residue. U.S. Dept. of the Interior, Bureau of Mines.

Chicago-viite (17. p.)

Lei, K. P. V., T. G. Carnahan, ja J. A. Eisele. Recovery of Sulfur and Accessory Metals from a Leaching Process Residue. Avondale, Md: U.S. Dept. of the Interior, Bureau of Mines, 1982.

MLA-viite (9. p.)

Lei, K. P. V., et al. Recovery of Sulfur and Accessory Metals from a Leaching Process Residue. U.S. Dept. of the Interior, Bureau of Mines, 1982.