TY  - RPRT
TI  - California condor survey, 1972
AU  - R.D. Mallette
AU  - S.R. Wilbur
AU  - W.D. Carrier
AU  - J.C. Borneman
PY  - 1973
UR  - https://pubs.usgs.gov/publication/5221122
ID  - 5221122
ER  -