TY - BOOK AU - Radha, S(ED.) AU - Sankhyan, Amar Singh(Ed.) ED - The Asian Institute of Social Law and Economics,Shimla TI - Environmental challenges of the 21st century SN - 81-7629-359-8 U1 - 363.7095405 21st PY - 2002/// CY - New Delhi PB - Deep and Deep Publications KW - Environment ER -