TY - RPRT TI - Influence of Pb on microbial activity in Pb-contaminated soils AU - J. E. Landmeyer AU - P. M. Bradley AU - F. H. Chapelle PY - 1993 DO - 10.1016/0038-0717(93)90064-i UR - https://pubs.usgs.gov/publication/70185453 ID - 70185453 ER -