| The pros and cons of subirrigation systems
| Cloud, Bob. 1984. Agora. Winter. p. 5-6.
| More | 259661 |
| Environmental enhancement through effective irrigation
| Robbins, Rick. 1984. Agora. Winter. p. 13-14.
| More | 259663 |
| Sprincalc: A computerized cost-estimating program
| Pischel, D. K. 1984. Agora. Winter. p. 15-16.
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