TY  - RPRT
TI  - Twelfth breeding-bird census: 13. Mixed oak forest
AU  - C.H. Kolb
AU  - C.S. Robbins
AU  - E.C. Robbins
PY  - 1948
UR  - https://pubs.usgs.gov/publication/5222379
ID  - 5222379
ER  -