TY  - RPRT
TI  - Analytical data for stream sediment, heavy-mineral concentrate, and outcrop samples, Sur Medio region, departments of Ica, Ayacucho, and Huancavelica, Peru; Part A, General discussion
AU  - Robert Eugene Learned
AU  - K. R. Long
AU  - R. L. Turner
AU  - Cesar Rios C.
AU  - Joe Rodriguez C.
PY  - 1994
DO  - 10.3133/ofr94182a
UR  - https://pubs.usgs.gov/publication/ofr94182A
ID  - ofr94182A
ER  -