Atlas of United States trees. 

 - 5 v.  ill. 
<br/><br/>2.  Alaska trees and common shrubs  Viereck, Leslie A.  Little, Elbert L. 3.  Minor western hardwoods  Little, Elbert L. 4.  Minor eastern hardwoods  Little, Elbert L. 5.  Florida  Little, Elbert L. 6.  Supplement  Little, Elbert L.