TY  - RPRT
TI  - Preparation of reference materials for particle-size analysis of silts and clays
AU  - Bruce M. Delaney
AU  - L.J. Schroder
PY  - 1979
DO  - 10.3133/ofr791590
UR  - https://pubs.usgs.gov/publication/ofr791590
ID  - ofr791590
ER  -