Verbatim text: Adams, W. P. and N. K. B. Robson. 1961. A re-evaluation of the generic status of Ascyrum and Crookea (Guttiferae). Rhodora 63: 10–16.
Author: Adams, W.P., Robson, N.K.B.
Year: 1961
Title: A re-evaluation of the generic status of Ascyrum and Crookea (Guttiferae)
Journal: Rhodora
Volume: 63
Pages: 10–16