Verbatim text: Dugle, J. R. and T. P. Copps. 1972. Pollen characteristics of Manitoba cattails. Canadian Field Naturalist 86: 33--40.
Author: Dugle, J.R., Copps, T.P.
Year: 1972
Title: Pollen characteristics of Manitoba cattails
Journal: Canadian Field Naturalist
Volume: 86
Pages: 33–40