Reference:Beal1982a
Verbatim text: Beal, E. O., J. W. Wooten, and R. B. Kaul. 1982. Review of Sagittaria engelmanniana complex (Alismataceae) with environmental correlations. Syst. Bot. 7: 417--432.
Author: Beal, E.O., Wooten, J.W., Kaul, R.B.
Year: 1982
Title: Review of Sagittaria engelmanniana complex (Alismataceae) with environmental correlations
Journal: Syst. Bot
Volume: 7
Pages: 417–432