Reference:Lewis1954a
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Verbatim text: Lewis, H. and C. Epling. 1954. A taxonomic study of Californian delphiniums. Brittonia 8: 1-22.
Author: Lewis, H., Epling, C.
Year: 1954
Title: A taxonomic study of Californian delphiniums
Journal: Brittonia
Volume: 8
Pages: 1–22