Verbatim text: Brittain, W. H. and W. F. Grant. 1967. Observations on Canadian birch (Betula) collections at the Morgan Arboretum. IV. B. caerulea-grandis and hybrids. Canad. Field-Naturalist 81: 116--127.
Author: Brittain, W.H., Grant, W.F.
Year: 1967
Title: Observations on Canadian birch (Betula) collections at the Morgan Arboretum. IV. B. caerulea-grandis and hybrids
Journal: Canad. Field-Naturalist
Volume: 81
Pages: 116–127