Zimmermann, R.C.
- Distribution of common oaks (Quercus sp.) and regional forest types in New England. 1968
- Distribution of common oaks (Quercus spp.) and regional forest types in New England. 1983
- Distribution of common oaks (Quercus spp.) and regional forest types in New England. 1984
- The distribution of common oaks in New England. 1980
- John C. Goodlett Oak Distribution research maps, mainly Northern New England. 1966