Twig key to the deciduous woody plants of eastern North America
By: by William M. Harlow
Edition: 3rd rev. ed
Publisher: The author
Published: 1937
Place of publication: [Syracuse, N.Y.]
Language: eng
Number of pages: 50
Subjects: Botany -- North America; Trees -- North America; Shrubs -- North America; Buds
Other titles: Deciduous woody plants
Notes: Reproduced from type-written copy

"Selected references": p. 43-44