Verbatim text: Riggins, R. 1977. A biosystematic study of the Sporobolus asper complex (Gramineae). Iowa State J. Res. 51:287-321
Author: Riggins, R.
Year: 1977
Title: A biosystematic study of the Sporobolus asper complex (Gramineae)
Journal: Iowa State J. Res
Volume: 51
Pages: 287–321