Precious metals -- Combustion : Catalytic ignition of hydrogen and hydrogen-hydrocarbon blends over noble metals / Nickolai M. Rubtsov, Kirill Ya. Troshin, Michail I. Alymov
2023
1
Precious metals -- Congresses : Precious Metals 1982 : proceedings of the Sixth International Precious Metals Institute Conference, held in Newport Beach, California, June 7-11, 1982 / edited by M.I. El Guindy
Precious metals -- Saudi Arabia -- Midian : The gold-mines of Midian and the ruined Midianite cities / by Richard Francis Burton ; newly edited from the author's corrected copy with an introd. by Philip Ward
Precious stone industry -- Corrupt practices : Implementing AML/CFT measures in the precious minerals sector : preventing crime while increasing revenue / prepared by Emmanuel Mathias and Bert Feys
Precious stones -- Laos. : 10 months in Laos : a vast web of intrigue, missing millions and murder / Paul Conroy
2002
1
Precious stones -- Management : Identification of barrier for development of the Sri Lankan small- and medium-scale gem mining enterprises : a case study based on Ratnapura District / S. W. S. B. Dasanayaka [and three others]
Precious stones -- Northern Territory : A Guide to fossicking in the Northern Territory / ... prepared by the staff of the Northern Territory Geological Survey