Cambridge: The University Press, 1921.

Cambridge: University Press, 1921.

Cambridge, The University Press, 1921.

Garden City, N. Y., Doubleday, Page & company, 1917.

Garden City, N.Y.,Doubleday, Page & company[c1917] | Library of Congress

Garden City, N. Y., Doubleday, Page & company[c1917]

botanical book by C.S. Sargent and E.H. Wilson

Publications of the Arnold Arboretum, No. 7