| Effect of federal tax laws on Arizona citrus development |
Spears |
1968 |
| Effect of western drought on the water resources of Safford Valley, Arizona, 1940-1952 |
Halpenny |
1955 |
| Effects of Environmental and cultural limitations upon Hohokam agriculture, southern Arizona |
Woodbury |
|
| Effects of Environmental and cultural limitations upon Hohokam agriculture, southern Arizona |
Ressler |
|
| Efficiency and preference at a bird feeder |
MacArthur |
1972 |
| Efficiency and preference at a bird feeder |
MacArthur |
1972 |
| Efficient beef production still requires some grain feeding |
|
1975 |
| Effie and Ed McEuen, pioneers |
Felshaw |
1960 |
| Effie Robinson Keen, state historian |
Kartus |
1931 |