TY  - RPRT
TI  - Inventory of published and unpublished chemical analyses of surface waters in the continental United States and Puerto Rico, 1961
AU  - Thomas H. Woodard
AU  - Sumner Griggs Heidel
PY  - 1964
DO  - 10.3133/wsp1786
UR  - https://pubs.usgs.gov/publication/wsp1786
ID  - wsp1786
ER  -