TY  - RPRT
TI  - Low-ash solid fuel from sewage sludge; an acid extraction method (progress report)
AU  - F. E. Senftle
AU  - P. Hackney
AU  - F. Jackson
AU  - A. Parker
AU  - K. Miller
AU  - Z. A. Brown
PY  - 1988
DO  - 10.3133/ofr88239
UR  - https://pubs.usgs.gov/publication/ofr88239
ID  - ofr88239
ER  -