TY  - RPRT
TI  - Bibliography of reports resulting from U.S. Geological Survey participation in the United States Technical Assistance Program: Supplement for 1968-1969
AU  - Wenonah E. Bergquist
PY  - 1970
DO  - 10.3133/ofr7026
UR  - https://pubs.usgs.gov/publication/ofr7026
ID  - ofr7026
ER  -