Verbatim text: Turner, B. L. and A. M. Powell. 1977[1978]. Helenieae—systematic review. In: V. H. Heywood et al., eds. 1977[1978]. The Biology and Chemistry of the Compositae. 2 vols. London, New York, and San Francisco. Vol. 2, pp. 699–737.
Author: Turner, B.L., Powell, A.M.
Year: 1977[1978]
Title: Helenieae—systematic review
Editor: Heywood, V.H.
Book year: 1977[1978]
Book title: The Biology and Chemistry of the Compositae
Book volume: 2 vols
Volume: 2
Pages: 699–737