Verbatim text: Les, D. H. 1993. Ceratophyllaceae. In: K. Kubitzki et al., eds. 1990+. The Families and Genera of Vascular Plants. 2+ vols. Berlin etc. Vol. 2, pp. 246-250.
Author: Les, D.H.
Year: 1993
Title: Ceratophyllaceae
Editor: Kubitzki, K.
Book year: 1990
Book title: The Families and Genera of Vascular Plants
Book volume: 2+ vols
Volume: 2
Pages: 246–250