Reference:Wister1927a
Verbatim text: Wister, J. C. 1927. The Iris: A Treatise on the History, Development and Culture of the Iris for the Amateur Gardener. New York and London.
Author: Wister, J.C.
Year: 1927
Title: The Iris: A Treatise on the History, Development and Culture of the Iris for the Amateur Gardener