TY  - BOOK
AU  - Hastings,James Rodney
TI  - The changing mile: an ecological study of vegetation change with time in the lower mile of an arid and semiarid region
U1  - 574.5265 
PY  - 1972///
CY  - TucsonArizonaEUA
PB  - University of Arizona Press
KW  - Ecología
KW  - zonas áridas
KW  - Botánica
KW  - ecología
N1  - FACULTAD DE ZOOTECNIA
ER  -