Cita APA (7a ed.)

Salisbury, H. B., Duchene, L. J., & Bilbrey, J. H. (1981). Recovery of copper and associated precious metals from electronic scrap. U.S. Dept. of the Interior, Bureau of Mines.

Cita Chicago Style (17a ed.)

Salisbury, H. B., L. J. Duchene, y Joseph H. Bilbrey. Recovery of Copper and Associated Precious Metals from Electronic Scrap. [Washington, D.C.?]: U.S. Dept. of the Interior, Bureau of Mines, 1981.

Cita MLA (9a ed.)

Salisbury, H. B., et al. Recovery of Copper and Associated Precious Metals from Electronic Scrap. U.S. Dept. of the Interior, Bureau of Mines, 1981.