000 00575 a2200253 4500
001 4043
020 _a0-444-41570-X0
041 _aeng
080 _a628.5 Pur
245 _aTrace-element contamination of the environment
250 _a
260 _aAmsterdam
260 _bElsevier Scientific Pub., 1977
260 _c1977
300 _axi,260 p.
300 _c22 cm
490 _astudies in visual information processing
100 _aPurves, David
700 _a
650 _a
650 _aTrace elements-Environmental aspects
942 _cBK
942 _2UDC
999 _c5284
_d5284