| Bugs of Washington and Oregon, |
Acorn, John, and Ian Sheldon.
|
2001 |
Lone Pine Publishing
|
| Bugs of British Columbia, |
Acorn, John, and Ian Sheldon.
|
2001 |
Lone Pine Publishing
|
| The Butterflies of Canada |
Layberry, Ross A., Peter W. Hall, and J. Donald Lafontaine.
|
1998 |
University of Toronto Press
|
| The Phenological Fly: A Method for Meeting and Matching the Super Hatches of the West |
Scammell, Bob.
|
1995 |
Johnson Gorman Publishers
|
