Mining Methods and Practices
Petroleum Refineries, Including Cracking Plants, in the United States, January 1, 1958
Petroleum Refineries, Including Cracking Plants, in the United States, January 1, 1959
Petroleum Refineries, Including Cracking Plants, in the United States, January 1, 1960
Petroleum Refineries, Including Cracking Plants, in the United States, January 1, 1959
Petroleum Refineries, Including Cracking Plants in the United States, January 1, 1961
Information Circular 8057-8068
Petroleum Refineries, Including Cracking Plants, in the United States, January 1, 1960
Vanadium
Information Circular 8005-8017
Information Circular 7860-7875
Information Circular 7937-7950
Mine Production of Gold, Silver, Copper, Lead, and Zinc in Pend Oreille, and Stevens Counties, Wash., 1902-56
Placer Mining in Alaska
The New Community
2 Briefe an Maria Lutz-Gantenbein
Proceedings of the Human Factors and Ergonomics Society 39th Annual Meeting, San Diego, CA, October 9 - 13 1995 -
Hvor stærk er England?