TY  - RPRT
TI  - Worldwide directory of national earth-science agencies and related international organizations
AU  - Wenonah E. Bergquist
AU  - E.J. Tinsley
AU  - Laura Yordy
AU  - R. L. Miller
PY  - 1981
DO  - 10.3133/cir834
UR  - https://pubs.usgs.gov/publication/cir834
ID  - cir834
ER  -