Allan, J. A. Virtual water : tackling the threat to our planet's most precious resource / Tony Allan. - London ; New York : I. B. Tauris, 2011. - xv, 368 p. : ill. ; 21 cm. Includes index.P.B ISBN: 9781845119836 (hbk.) 1845119835 (hbk.) 9781845119843 (pbk) 1845119843 (pbk) LCCN: 2011291083 Subjects--Topical Terms: Water conservation.Water consumption. LC Class. No.: / .A45 2011 Dewey Class. No.: 333.9116 ALL