Casting P-900 armorplate by the expendable pattern casting process /
by J.S. Hansen and P.C. Turner.
- Washington, DC : U.S. Dept. of the Interior, Bureau of Mines, 1992.
- 7 p. : ill.
- Report of investigations ; 9436 .
- United States. Bureau of Mines. Report of investigations ; 9436. .
- Report of investigations (United States. Bureau of Mines) ; 9436. .