Classification de la Bibliothèque du CongrèsTN270.H38
T. Technology
⮑ TN1-997. Mining engineering. Metallurgy
⮑ TN263-271. Mineral deposits. Metallic ore deposits.
Œuvres sélectionnées (448 total)
- Gold! Gold! How and Where to Prospect for Gold (Prospecting and Treasure Hunting) par Joseph F. Petralia
- Looking for Gold: The Modern Prospector's Handbook (Prospecting and Treasure Hunting) par Bradford Angier