A Guide to the Wildflowers and Ferns of KentuckyMary E. Wharton, Roger W. Barbour · First published 2014Open the Tome
Bluegrass Land and Life : Land Character, Plants, and Animals of the Inner Bluegrass Region of KentuckyMary E. Wharton, Roger W. Barbour · First published 2014Open the Tome
Turtles of the United States and CanadaCarl H. Ernst, Jeffrey E. Lovich, Roger W. Barbour · First published 1994Open the Tome