1. The Life of the Green Plant;Galston,1980
2. The Replacement of the Nondescript Term ‘Heavy Metals’ by a Biologically and Chemically Significant Classification of Metal Ions;Nieboer;Env Pollution [B],1980
3. Atmospheric Sources of Metal Pollution and Effects on Vegetation;Seaward,1990
4. Metals in Water;Runnells,1992
5. Biological Methods of Prospecting for Minerals;Brooks,1983