Viertel, A. T. (1970). Trees, shrubs and vines: A pictorial guide to the ornamental plants of the Northern United States exclusive of conifers. Syracuse University Press.
Chicago Style (17th ed.) CitationViertel, Arthur T. Trees, Shrubs and Vines: A Pictorial Guide to the Ornamental Plants of the Northern United States Exclusive of Conifers. New York: Syracuse University Press, 1970.
MLA (9th ed.) CitationViertel, Arthur T. Trees, Shrubs and Vines: A Pictorial Guide to the Ornamental Plants of the Northern United States Exclusive of Conifers. Syracuse University Press, 1970.
Warning: These citations may not always be 100% accurate.