Saxena, M. M. Environmental analysis : water soil and air / M. M. Saxena - Bikaner : Agro Botarica, c1998. - 184 p. : 21 cm. ISBN: 8187167068 LCCN: Subjects--Topical Terms: Envinonmental abuse LC Class. No.: TD193 / .S29 1998 Dewey Class. No.: 628.52 / S272e