TY  - RPRT
TI  - Construction and operation of cable-chain drag for nest searches
AU  - K.F. Higgins
AU  - L.M. Kirsch
AU  - Harold F. Duebbert
AU  - A. Klett
PY  - 1977
UR  - https://pubs.usgs.gov/publication/2000115
ID  - 2000115
ER  -