TY  - RPRT
TI  - Comparison: US P-61 and Delft sediment samplers
AU  - Joseph P. Beverage
AU  - David T. Williams
PY  - 1989
DO  - 10.1061/(asce)0733-9429(1989)115:12(1702)
UR  - https://pubs.usgs.gov/publication/70015796
ID  - 70015796
ER  -