TY  - RPRT
TI  - Concentrations of chromium, manganese, and lead in air and in avian eggs
AU  - Clifford A. Hui
PY  - 2002
DO  - 10.1016/s0269-7491(02)00158-6
UR  - https://pubs.usgs.gov/publication/1008302
ID  - 1008302
ER  -