TY  - RPRT
TI  - A field method for obtaining significant average directional measurements in cross-stratification studies
AU  - Omer Beaver Ramp
AU  - Alfred T. Miesch
PY  - 1956
DO  - 10.3133/tem689
UR  - https://pubs.usgs.gov/publication/tem689
ID  - tem689
ER  -