Violets (viola) of Central and Eastern United States
Subtitle: an introductory survey
By: Norman H. Russell.
Series: SIDA contributions to botany -- v. 2, no. 1
Publisher: Lloyd H. Shinners
Published: 1965
Place of publication: Dallas
Language: eng
Number of pages: 113
Subjects: Violets
Notes: Bibliography: p. 109-111.