00552nam a2200193Ia 4500 131103s9999 xx 000 0 und d Loreto College English 577/301.31/KHA LCLIB/41622 Khan, T.N. Environmental Science by T.N.Khan Calcutta B.M.Publication 2000 xvi, 428 p. ill., fig., photos, maps, tables 23 cm. Includes appendix Ecology Environmental science LCLIB/301.31/KHA BK 2782 53261 0 0 0 0 MAIN MAIN 2013-11-04 0 577/301.31/KHA LCLIB/41622 B2642 2013-11-04 2013-11-04 BK