00587nam a2200157Ia 4500008004100000020003800041040001700079082002700096100002000123245010200143260002800245300001600273650009500289700002300384700002200407190327s9999||||xx |||||||||||||| ||und||  a81-7099-360-181-7099-380-6 (v.20)  aNITILcNITIL  221sta574.52603bS573E  aSwarup, R (Ed.) 0aEncyclopaedia of ecology, environment and pollution controlbenvironment: an assessmentcR Swarup  aNew DelhibMittalc1992  av.20 (412p)  aEcology-Encyclopaedias; Nature and nuture-Encyclopaedias; Pollution control-Encyclopaedias  aJauhari, V P (Ed.)  aMishra, S N (Ed.)