Singh, Savindra. Environmental geography / Savindra Singh. - Allahabad : Prayag Pustak Bhawan , 2000. - viii,560p.+7 : ills,figs.,tables ; 25cm. . NULL ISBN: 8186539190 Rs.175.00 Subjects--Index Terms: ENVIRONMENTAL SCIENCES Dewey Class. No.: 363.7 / SIN/E