TY  - BOOK
AU  - Hastings, James Rodney.
TI  - The changing mile: : an ecological study of vegetation change cult time in lower mile of an arid and semi arid region
U1  - 551.45 
PY  - 1965///
CY  - Tucson, Arizona
PB  - University of Arizona
KW  - Botánica
KW  - Regiones áridas
KW  - Desiertos
KW  - Ecología
ER  -