1. Anderlini, V. C.: The heavy metal composition of the red abalone,Haliotis rufescens. M. A. Thesis, Calif. State Univ., San Francisco (1973).
2. Berman, E.: Application of A.A.S. to the determination of Cu in serum, urine, and tissue. A. A. Newsletter4, 296 (1965).
3. Berman, E.: Determination of Cd, Tl and Hg in biological materials by A. A. Atomic Absorption Newsletter6, 57 (1967).
4. Bowen, H. J. M.: Trace elements in biochemistry. Academic Press, London, 241 pp. (1966).
5. Bradford, G. R.: Trace elements in the water resources of California. Hilgardia41, 45 (1971).