| 其他書名 | Opportunities and Constraints : Workshop Proceedings, April 8-9, 1999, Tucson, AZ |
| 出版 | Water Resources Research Center, College of Agriculture, The University of Arizona, 1999 |
| URL | http://books.google.com.hk/books?id=YZRPa-s7WssC&hl=&source=gbs_api |