Verbatim text: Mackenzie, K. K. 1931–1935. Cyperaceae [in part]. In: N. L. Britton et al., eds. 1905+. North American Flora…. 47+ vols. New York. Vol. 18, parts 1–7, pp. 1–478.
Author: Mackenzie, K.K.
Year: 1931–1935
Title: Cyperaceae
Editor: Britton, N.L.
Book year: 1905
Book title: North American Flora
Book volume: 47+ vols
Volume: 18
Pages: 1-478