TY  - RPRT
TI  - Extraction and speciation of arsenic in lacustrine sediments
AU  - W. H. Ficklin
PY  - 1990
DO  - 10.1016/0039-9140(90)80127-2
UR  - https://pubs.usgs.gov/publication/70016043
ID  - 70016043
ER  -