Verbatim text: Porsild, A. E. 1950. The genus Antennaria in northwestern Canada. Canad. Field-Naturalist 64: 1–25.
Author: Porsild, A.E.
Year: 1950
Title: The genus Antennaria in northwestern Canada
Journal: Canad. Field-Naturalist
Volume: 64
Pages: 1–25