TY  - RPRT
TI  - Hydraulic equivalence of grains of quartz and heavier minerals, and implications for the study of placers
AU  - H. A. Tourtelot
PY  - 1968
DO  - 10.3133/pp594f
UR  - https://pubs.usgs.gov/publication/pp594F
ID  - pp594F
ER  -