TY  - RPRT
TI  - System dynamics simulation modeling applied to western coal development environmental impact analysis
AU  - R. K. Mark
AU  - D. S. Harwood
AU  - E. B. Newman
AU  - Richard R. Doell
PY  - 1979
DO  - 10.3133/ofr79226
UR  - https://pubs.usgs.gov/publication/ofr79226
ID  - ofr79226
ER  -