TY  - RPRT
TI  - Sources and age of aquatic humus
AU  - Diane M. McKnight
AU  - George R. Aiken
PY  - 1998
DO  - 10.1007/978-3-662-03736-2_2
UR  - https://pubs.usgs.gov/publication/70198952
ID  - 70198952
ER  -