na INLIS000000000001266 0010-0124000952 Encyclopaedia of world environment vol. 4 : Pollution A.P.H. Publishing Corporation P.R. Trivedi New Delhi A.P.H. Publishing Corporation 2002 v, 330 p. ; 22 cm. 81-7648-044-4 Ref. 577.4:614.7(03) TRI e v-4 ENVIRONMENT WORLD ENCYCLOPEDIA POLLUTION REF. 095/2004