Reference:Stern1961b
Verbatim text: Stern, K. R. 1961b. Chromosome numbers in nine taxa of Potamogeton. Bull. Torrey Bot. Club 88: 411--414.
Author: Stern, K.R.
Year: 1961b
Title: Chromosome numbers in nine taxa of Potamogeton
Journal: Bull. Torrey Bot. Club
Volume: 88
Pages: 411–414