Verbatim text: Lester, D.T. 1968. Variation in cone morphology of balsam fir, Abies balsamea. Rhodora 70: 83--94.
Author: Lester, D.T.
Year: 1968
Title: Variation in cone morphology of balsam fir, Abies balsamea
Journal: Rhodora
Volume: 70
Pages: 83–94