1. Trace Elements in the Terrestrial Environment;Adriano,1986
2. The historical record of metal enrichment in two Florida estuaries;Alexander;Estuaries,1993
3. Natural versus unnatural heavy metal concentrations in lake sediments in Canada;Allan;Proc. Int. Conf. Heavy Metals in the Environ.,1975
4. Heavy Metals in Soils;Alloway,1995
5. Effects of man-made and natural sources on the heavy-metal patterns in bottom sediments in the Gulf of Peter the Great, Sea of Japan;Anikiyev;Geokhimiya,1993