APA (7e ed.) Bronvermelding

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.

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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