How to know the common trees and shrubs of Pennsylvania, native and introduced
By: by Geo. S. Perry
Series: Pennsylvania. Dept. of Forests and Waters. Bulletin -- no. 33; Bulletin (Pennsylvania. Department of Forests and Waters) -- no. 33
Publisher: Pennsylvania Department of Forests and Waters
Published: 1924
Place of publication: Harrisburg, Pa.
Language: eng
Number of pages: 90
Subjects: Shrubs; Trees