TY  - RPRT
TI  - QDF database system, version 1.0 : reflectance of ore minerals; a search-and-match identification system for IBM and compatible microcomputers using the IMA/COM quantitative data file for ore minerals, second issue, Part E - QDF data file disk
AU  - Carol N. Gerlitz
AU  - B. F. Leonard
AU  - A.J. Criddle
PY  - 1989
DO  - 10.3133/ofr89306e
UR  - https://pubs.usgs.gov/publication/ofr89306E
ID  - ofr89306E
ER  -