The Bureau of Land Management Library is looking for the following items,
we believe they might be circa 1983-1984:
-old US Geological Survey Mining Operations Manual, parts 620 to 629
-Oil &Gas Operations Manual, parts 640 to 649, the notebook label of which
says "Branch of Minerals, Classification Manual."
Please contact me if you own them and we can borrow them, or if you have
suggestions for where we might find them.
Chief, Branch of Library Services
Bureau of Land Management
PO Box 25047
Denver, CO 80225
[log in to unmask]