TY  - RPRT
TI  - Crow damage to fall grain crops in Oklahoma in 1937: with a comparison of field and questionnaire methods of appraisal
AU  - Ralph H. Imler
AU  - E.R. Kalmbach
PY  - 1939
UR  - https://pubs.usgs.gov/publication/38042
ID  - 38042
ER  -