Arid lands in transition
DREGNE, Harold E.
Arid lands in transition - America American Association for the advancement of science Washington, D.C. 1970 - 524 p.
TIERRAS
ZONAS ARIDAS
TRANSICION
630.1 DRE
Arid lands in transition - America American Association for the advancement of science Washington, D.C. 1970 - 524 p.
TIERRAS
ZONAS ARIDAS
TRANSICION
630.1 DRE