TY  - RPRT
TI  - Standard operating procedures for wild horse and burro double-observer aerial surveys
AU  - Paul C. Griffin
AU  - L. Stefan Ekernas
AU  - Kathryn A. Schoenecker
AU  - Bruce C. Lubow
PY  - 2020
DO  - 10.3133/tm2a16
UR  - https://pubs.usgs.gov/publication/tm2A16
ID  - tm2A16
ER  -