Field Guides
- Borror , D. and White , R. A Field Guide to the Insects , Peterson Field Guide Series Boston : Houghton Mifflin Co. .
- Brown , Lauren . Weeds in Winter , Boston : Houghton Mifflin Co. .
- Gosner , Kenneth . A Field Guide to the Atlantic Seashore , Peterson Field Guide Series Boston : Houghton Mifflin Co. .
- Peterson , Roger T. A Field Guide to the Birds , Peterson Field Guide Series Boston : Houghton Mifflin Co. .
- Peterson , R. T. and McKenny , M. A Field Guide to Wildflowers , Peterson Field Guide Series Boston : Houghton Mifflin Co. .
- Stokes , Donald . A Field Guide to Nature in Winter , Boston : Little, Brown and Co. .