Verbatim text: Russell, N. H. 1965. Violets (Viola) of the central and eastern United States: An introductory survey. Sida 2: 1–113.
Author: Russell, N.H.
Year: 1965
Title: Violets (Viola) of the central and eastern United States: An introductory survey
Journal: Sida
Volume: 2
Pages: 1–113