REHDER, ALFRED.
Manual of cultivated trees and shrubs hardy in North America. 2d ed., rev. & enl.
REHDER, ALFRED. Manual of cultivated trees and shrubs hardy in North America. 2d ed., rev. & enl. © 4Jun40; A141680. Harald A. Rehder, Gerhard Rehder & Sylvia Rehder Witherell (C); 12Jul67; R413610.
Harald A. Rehder, Gerhard Rehder & Sylvia Rehder Witherell|C