TY  - RPRT
TI  - Conservation reserve program: benefit for grassland birds in the northern plains
AU  - R. E. Reynolds
AU  - T.L. Shaffer
AU  - J.R. Sauer
AU  - B.G. Peterjohn
PY  - 1994
UR  - https://pubs.usgs.gov/publication/5222719
ID  - 5222719
ER  -