"0, . "
natural resources and development vol.49/50: focus:water-the lifeline of our future/ - ed. - hanover : institute for scie. co-op 1999. - ", 262p.; 24 cm."
includes bibliography
HD75.6 / .N38 1999
natural resources and development vol.49/50: focus:water-the lifeline of our future/ - ed. - hanover : institute for scie. co-op 1999. - ", 262p.; 24 cm."
includes bibliography
HD75.6 / .N38 1999