Evaluation of a radioisotopic X-ray drill- hole probe: delineation of lead ores.  by Harold E. Marr, III, and William J. Campbell
Contributors: Campbell, W.J.
Publisher: U.S. Dept. of the Interior
Place of publication: Washington
Language: eng
Number of pages: 28
Subjects: Prospecting - Geophysical methods; Lead ores
Notes: 11