TY  - BOOK
AU  - Walker, B H
TI  - Managemet of semi arid ecosystems
SN  - 0444417591
U1  - 333.73 22
PY  - 1979///
CY  - New York
PB  - Elsevier Sceintific Pub. Co.
KW  - Managemet
KW  - ecosystems
KW  - Semi arid
N1  - Include bibliographical references and index
ER  -