Reference:Case1993a
Verbatim text: Case, F. W. and R. B. Case. 1993. Trillium erectum and its hybrids. Bull. Amer. Rock Gard. Soc. 51: 162–168.
Author: Case, F.W., Case, R.B.
Year: 1993
Title: Trillium erectum and its hybrids
Journal: Bull. Amer. Rock Gard. Soc
Volume: 51
Pages: 162–168