TY - BOOK AU - Katiyar ,V.S., x AU - x TI - Environmental concerns: depleting resources and subtainable developnent: x SN - 8171321534 U1 - 363.73/K19e PY - 1997/// CY - Jaipur PB - Poihter KW - Environmental health KW - Pollution N1 - Includes ER -