[Kiril]

Here are a few to get you started.

1. The Pacific Northwest Irrigator’s Pocket Guide
   
   
2. NRCS - Irrigation -- Handbooks and Manuals
   
   
3. FAO - Irrigation Publications & Manuals
   
   
4. Turf and Landscape Irrigation Best Management Practices
   
   
5. A Guide to Estimating Irrigation Water Needs of Landscape Plantings in California
   
   
6. Turfgrass Water Conservation - 2nd Edition ($$)
   
   
7. Rainbird - Landscape Irrigation Design Manual
   
   
8. The California Microirrigation Pocket Guide
   
   
9. Weather Reach - Landscape Water Management Manual
   
   
10. Hunter - Design & Technical Guides