- Minerals sought (e.g., sand, salt, clay, ocher, sulphur, phosphates)
- Methods of extraction
- Organization of labor and production
- Utilization of products; etc.
- Mineral resources 135
- Property in exploitative sites with monopoly value 423
- Salt manufacture 258
Outline of Cultural Materials. George P. Murdock, et al., eds. New Haven, Conn. Human Relations Area Files, Inc. 1961. xxv, 164 p.