TY  - RPRT
TI  - Retention of lead during oxidative ashing of selected naturally occurring carbonaceous substances
AU  - Frank Cuttitta
AU  - Jesse J. Warr
PY  - 1957
DO  - 10.3133/tei683
UR  - https://pubs.usgs.gov/publication/tei683
ID  - tei683
ER  -