1.
 |  | Title: A Field Guide to the Birds of Eastern and Central North America by Roger Tory Peterson ISBN: 0395740460 Publisher: Houghton Mifflin Pub. Date: 04 April, 2002 List Price: $22.00 Amazon.com Price: $15.40 |
2.
 |  | Title: A Field Guide to Wildflowers : Northeastern and North-Central North America (Peterson Field Guides) by Margaret McKenny, Roger Tory Peterson ISBN: 0395911729 Publisher: Houghton Mifflin Pub. Date: 15 March, 1998 List Price: $19.00 Amazon.com Price: $13.30 |
3.
 |  | Title: A Field Guide to Trees and Shrubs : Northeastern and north-central United States and southeastern and south-central Canada (The Peterson Field Guide Series) by George A. Petrides, Roger Tory Peterson ISBN: 039535370X Publisher: Houghton Mifflin Pub. Date: 06 September, 1973 List Price: $19.00 Amazon.com Price: $13.30 |
4.
 |  | Title: A Field Guide to Freshwater Fishes : North America North of Mexico (Peterson Field Guides) by Brooks M. Burr, Lawrence M. Page, Roger Tory Peterson ISBN: 0395910919 Publisher: Houghton Mifflin Co Pub. Date: 15 January, 1998 List Price: $19.00 Amazon.com Price: $13.30 |
5.
 |  | Title: Birding by Ear: Eastern and Central North America (Peterson Field Guides(R)) by Richard K. Walton, Robert W. Lawson, Roger Tory Peterson ISBN: 0618225900 Publisher: Houghton Mifflin Pub. Date: 04 April, 2002 List Price: $30.00 Amazon.com Price: $20.40 |
6.
 |  | Title: Peterson First Guide to Butterflies and Moths (First Guide) by Paul A. Opler, Roger Tory Peterson ISBN: 0395906652 Publisher: Houghton Mifflin Co Pub. Date: 20 February, 1998 List Price: $5.95 Amazon.com Price: $5.95 |
7.
 |  | Title: A Field Guide to Edible Wild Plants : Eastern and central North America (Peterson Field Guides) by Lee Allen Peterson, Roger Tory Peterson ISBN: 039592622X Publisher: Houghton Mifflin Pub. Date: 01 September, 1999 List Price: $19.00 Amazon.com Price: $13.30 |
8.
 |  | Title: Peterson First Guide to Caterpillars of North America (First Guide) by Amy Bartlett Wright, Roger Tory Peterson ISBN: 0395911842 Publisher: Houghton Mifflin Co Pub. Date: 15 May, 1998 List Price: $5.95 Amazon.com Price: $5.95 |
9.
 |  | Title: A Field Guide to Insects by Richard E. White, Donald J. Borror, Roger Tory Peterson ISBN: 0395911702 Publisher: Houghton Mifflin Co Pub. Date: 15 April, 1998 List Price: $19.00 Amazon.com Price: $13.30 |
10.
 |  | Title: Peterson First Guide to Insects of North America (Peterson First Guide) by Christopher Leahy, Roger Tory Peterson ISBN: 0395906644 Publisher: Houghton Mifflin Co Pub. Date: 20 February, 1998 List Price: $5.95 Amazon.com Price: $5.95 |