On a Clear Day
| Title | On a Clear Day |
| Publication Type | Magazine Article |
| Year of Publication | 1997 |
| Authors | Tennesen, Michael |
| Magazine | National Parks |
| Volume | 71 |
| Issue Number | 11-12 |
| Pages | 26-29 |
| Date Published | November/December |
| Subjects | Air pollution, Air quality, Pollution |
| URL | http://books.google.com/books?id=YYsOv0phfVAC&pg=PA26&dq=national+parks+magazines&source=gbs_toc_r&cad=2#v=onepage&q&f=false |
