|
Invasion of semidesert grassland by Velvet mesquite and associated vegetation changes |
October 1973 |
|
Some site relations in three flood-plain communities in central Arizona |
October 1965 |
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Survey of floodplain vegetation along Lover Gila River in Southwestern Arizona |
June 1972 |
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The San Francisco Peaks and the Life Zone concept |
1989 |
