TY  - RPRT
TI  - On the availability of geoscientific data and scientific collaborators of an in Africa
AU  - David A. Hastings
PY  - 1982
DO  - 10.1016/0016-7142(82)90018-7
UR  - https://pubs.usgs.gov/publication/70140552
ID  - 70140552
ER  -