Verbatim text: Brittain, W. H. and W. F. Grant. 1968. Observations on Canadian birch (Betula) collections at the Morgan Arboretum. VI. B. papyrifera from the Rocky Mountains. Canad. Field-Naturalist 82: 44--48.
Author: Brittain, W.H., Grant, W.F.
Year: 1968
Title: Observations on Canadian birch (Betula) collections at the Morgan Arboretum. VI. B. papyrifera from the Rocky Mountains
Journal: Canad. Field-Naturalist
Volume: 82
Pages: 44–48