Otto, G. H. (1997). A National survey on naturally occurring radioactive material (NORM) in petroleum production and gas processing facilities. Washington, D. C.: American Petroleum Institute.
Chicago Style CitationOtto, Gordon H. A National Survey On Naturally Occurring Radioactive Material (NORM) in Petroleum Production and Gas Processing Facilities. Washington, D. C.: American Petroleum Institute, 1997.
MLA CitationOtto, Gordon H. A National Survey On Naturally Occurring Radioactive Material (NORM) in Petroleum Production and Gas Processing Facilities. Washington, D. C.: American Petroleum Institute, 1997.
Warning: These citations may not always be 100% accurate.