Reference:Jones1939a
Revision as of 23:00, 26 July 2019 by Unknown user (talk)
Verbatim text: Jones, G. N. 1939. A synopsis of the North American species of Sorbus. J. Arnold Arbor. 20: 1–43.
Author: Jones, G.N.
Year: 1939
Title: A synopsis of the North American species of Sorbus
Journal: J. Arnold Arbor
Volume: 20
Pages: 1–43