TY  - RPRT
TI  - Oxidized zinc deposits of the United States: Part 1. General geology
AU  - A. V. Heyl
AU  - C. N. Bozion
PY  - 1962
DO  - 10.3133/b1135a
UR  - https://pubs.usgs.gov/publication/b1135A
ID  - b1135A
ER  -