TY  - RPRT
TI  - Using effort information with change-in-ratio data for population estimation
AU  - Mark S. Udevitz
AU  - Kenneth H. Pollock
PY  - 1995
DO  - 10.2307/2532935
UR  - https://pubs.usgs.gov/publication/70180937
ID  - 70180937
ER  -