TY  - RPRT
TI  - Clinoptilolite of possible economic value in sedimentary deposits of the conterminous United States
AU  - Richard A. Sheppard
PY  - 1971
DO  - 10.3133/b1332b
UR  - https://pubs.usgs.gov/publication/b1332B
ID  - b1332B
ER  -