TY  - RPRT
TI  - A guide to safe field operations
AU  - D. K. Yobbi
AU  - T.H. Yorke
AU  - R.T. Mycyk
PY  - 1996
DO  - 10.3133/ofr95777
UR  - https://pubs.usgs.gov/publication/ofr95777
ID  - ofr95777
ER  -