Cita APA (7a ed.)

Siemens, R. E., Stickney, W. A., & Good, P. C. (1975). Recovery of nickel and cobalt from low-grade domestic laterites. U.S. Dept. of the Interior.

Cita Chicago Style (17a ed.)

Siemens, R. E., William Albert Stickney, y P. C. Good. Recovery of Nickel and Cobalt from Low-grade Domestic Laterites. Washington, D.C.: U.S. Dept. of the Interior, 1975.

Cita MLA (9a ed.)

Siemens, R. E., et al. Recovery of Nickel and Cobalt from Low-grade Domestic Laterites. U.S. Dept. of the Interior, 1975.