Encyclopaedia of ecology, environment and pollution control
574.52603
S573E
Swarup, R (Ed.)
 Encyclopaedia of ecology, environment and pollution control environmental air and water analysis \ R Swarup - New Delhi : Mittal, 1992.
 v.17 (v, 311p)   ISBN: 81-7099-360-181-7099-37
132289
  Subjects: Ecology-Encyclopaedias; Nature and nuture-Encyclopaedias; Pollution control-Encyclopaedias.

