| 其他書名 | California Acid Deposition Monitoring Program Wet Deposition Data Summary--July 1990 to June 1993, Hydrological Years 1991, 1992 and 1993 |
| 出版 | California Environmental Protection Agency, Air Resources Board, 1995 |
| URL | http://books.google.com.hk/books?id=ZIqcTpuu9QMC&hl=&source=gbs_api |