TY  - RPRT
TI  - Subspecific identification of song sparrows collected at Raleigh, N.C.,in summer of 1967
AU  - P.W. Sykes
AU  - R.C. Laybourne
PY  - 1974
UR  - https://pubs.usgs.gov/publication/5221043
ID  - 5221043
ER  -