TY  - RPRT
TI  - Elemental composition of corn grains, soybean seeds, pasture grasses, and associated soils from selected areas in Missouri
AU  - J. A. Erdman
AU  - H.T. Shacklette
AU  - J. R. Keith
PY  - 1976
DO  - 10.3133/pp954d
UR  - https://pubs.usgs.gov/publication/pp954D
ID  - pp954D
ER  -