Placer Gold Deposits of Arizona (Large Text Classic Reprint) Johnson, Maureen G. Heftet / 2018 / Engelsk
Placer Gold Deposits of Nevada (Large Text Classic Reprint) Johnson, Maureen G. Heftet / 2018 / Engelsk
Placer Gold Deposits of New Mexico: A Catalog of Location, Geology, and Production, With Lists of Annotated References Pertaining to the Placer Districts (Classic Reprint) Johnson, Maureen G. Innbundet / 2018 / Engelsk
Placer Gold Deposits of Utah (Large Text Classic Reprint) Johnson, Maureen G. Heftet / 2019 / Engelsk
Placer Gold Deposits of New Mexico: A Catalog of Location, Geology, and Production, With Lists of Annotated References Pertaining to the Placer Districts (Classic Reprint) Johnson, Maureen G. Heftet / 2018 / Engelsk
