TY  - RPRT
TI  - A procedure for describing fish and wildlife: coding instructions for Pennsylvania
AU  - W.T. Mason
AU  - C.T. Cushwa
AU  - L.J. Slaski
AU  - D.N. Glad
PY  - 1979
UR  - https://pubs.usgs.gov/publication/fwsobs79_19
ID  - fwsobs79_19
ER  -