Gleason, H. A., Britton, N. L., & Brown, A. (1963). The New Britton and Brown illustrated flora of the Northeastern United States and adjacent Canada ([3rd printing, slightly rev.].). Published for the New York Botanical Garden by Hafner Pub. Co..
Chicago Style aipamenaGleason, Henry Allan, Nathaniel Lord Britton, and Addison Brown. The New Britton and Brown Illustrated Flora of the Northeastern United States and Adjacent Canada. [3rd printing, slightly rev.]. New York: Published for the New York Botanical Garden by Hafner Pub. Co., 1963.
MLA aipamenaGleason, Henry Allan, et al. The New Britton and Brown Illustrated Flora of the Northeastern United States and Adjacent Canada. [3rd printing, slightly rev.]. Published for the New York Botanical Garden by Hafner Pub. Co., 1963.