Reference:Green1964a
Verbatim text: Green, P. S. 1964. Registration of cultivar names in Ulmus. Arnoldia (Jamaica Plain) 24: 41-80.
Author: Green, P.S.
Year: 1964
Title: Registration of cultivar names in Ulmus
Journal: Arnoldia (Jamaica Plain)
Volume: 24
Pages: 41–80