TY  - RPRT
TI  - Duck nesting in fields of undisturbed grass-legume cover
AU  - Harold F. Duebbert
AU  - J. T. Lokemoen
PY  - 1976
DO  - 10.2307/3800154
UR  - https://pubs.usgs.gov/publication/1001504
ID  - 1001504
ER  -