|
BOT'P03 UG/8164 Botkin, Daniel B. Environmental science : earth as a living planet / Daniel B. Botkin, Edward A. Keller. – 4th ed. – Hoboken : John Wiley , c2003 xxvii, 668+p. : col. ill. ISBN0471389145 : Rs.1247/- . Environmental sciences . Keller, Edward A. |
